Fifteen-year-old Justin is already making waves in America following the release of his debut album, My World, and looks set to do the same in the UK.
But the Canadian hotshot's not your usual reality TV show pop star. He was spotted on YouTube after posting his own music online and was soon swooped up by Usher and signed for Island Records.
Justin has his own distinctive pop/R&B style and the album features a selection of upbeat and soulful tracks.
It also features guest vocals from Usher, who makes an appearance in the album's bonus video for One Time AND the video for One Less Lonely Girl.
One Time is the first track on the album and has got one catchy beat.
Down to Earth is a bit more soulful and slows the tempo, showing the range in Justin's talent, while First Dance, featuring Usher, is definitely one for the last dance at the school disco!
There's not too much to let this album down, apart from the fact that there's only seven tracks!
That's because My World is part one of a two-part set, with the second part due out later in the year.
But it's not all bad, as the album includes two bonus videos you can play on your computer, and you should find it's slightly cheaper than a standard album too.
Will you still be humming it next week?
Definitely. Some of the more upbeat tracks are really catchy with a funky backing track.
Will it make the charts?
For sure. With the army of fans that camped out just to catch a glimpse of him during his recent trip to the UK, we can definitely expect Justin to be making an appearance in the charts.
This reviews page is now closed. Here are some of the reviews you sent in.
"I love Justin Bieber. He can sing really well. He rocks."
Tegan, 9, Bristol, England
"Justin Bieber is a brilliant singer. My favourite song is One Less Lonely Girl."
Dylan, 8, Lanarkshire, Scotland
"I think that this album rocks and I LOVE the song One Time, it is AWESOME!"
Anna, 11, Bolton, England
"I love Justin Bieber so much. What he was wearing to the Grammys was great."
Maisha, 12, London, England
"l love the way he sings."
Savaanh, 12, Utah, USA
"I love it! He ticks all the boxes! He's cool, he can sing and he's talented!"
Aoibh, 10, Derry, N. Ireland
"What is so amazing about Justin Bieber? He has an average voice and only teenage girls like him."
Zara, 12, London, England
"I can't go a day without putting that song on and humming along to it. I think he really deserves this opportunity. He's amazing."
Joanna, 13, Suffolk, England
"I love Justin Bieber. He is a fantastic singer!"
Abbie, 10, Newcastle, England
"Justin Bieber rocks!"
Ruby, 12, Nottingham, England
"His album is a big hit at my school."
Harley, 11, Bradford, England
"I love Justin. His songs are the best."
Katherine, 10, Reading, England
"It is a really good album and I love it. I listen to it everyday. I love Justin Bieber!"
Jazmin, 11, Shrewsbury, England
"The best song is definitely One Time. I listen to it a lot!"
Sam, 10, Woking, England
"I think it's brilliant!"
Steph, 9, Southampton, England
"I love Justin Bieber's new album but I wouldn't say it's the best music I've ever heard."
Olivia, 10, Bradford, England
"His album is great. His songs are great. I love Justin Bieber!"
Sonia, 12, Kirklees, England
"Justin Bieber is FABULOUS. I adore him. His album gives me goosebumps, I love it that much. I LOVE JUSTIN BIEBER! I don't have a favourite song, I love them all."
Hannah, 13, Bolton, England
"I love Justin Bieber. I like to just sing and dance along to the beat because it's that good!!"
Heather, 14, Dumfries, Scotland
"I just love Justin Bieber. His songs are awesome and so are his looks. My friends think I'm obsessed! He's my favourite artist of all time and you can listen to his album over and over again!"
Sarah, 13, Leeds, England
"I love Justin Bieber! I think that his music is amazing. It is the first album I have bought in three years. My favourite songs have to be DOWN TO EARTH and FAVOURITE GIRL."
Hannah, 13, Bolton, England
"I love Justin Bieber, he is sooo cute. I love his songs, especially One Time and One Less Lonely Girl. I love you Justin Bieber!!"
Sophie, 13, West Midlands, England
"My World is one of the best albums I have heard in years! From catchy tunes to slow romantic love songs, you could listen to this album again and again! My favourite song from this album has to be Bigger."
Louise, 12, Motherwell, Scotland
"Justin is truly amazing. I started listening to his music last summer before most people knew him and ever since I've loved him. I've got the album and all the songs are great."
Grace, 14, Bedford, England
"I really am not impressed by Justin Bieber. He is repetitive, annoying and has a really girly voice. All my friends are obsessed with him, unfortunately."
Lilian, 12, Oxford, England
"I don't really like this sort of music and Justin has a long way to go to be exceptional. He's getting there, but I'm no fan of his music either."
Jacob, 11, Croydon, England
"I hate Justin Bieber and he sings like a girl! His songs are really annoying and everybody seems to fancy him, when he isn't even remotely good looking."
Rebecca, 12, Buckinghamshire, England
"Justin Bieber is totally awesome and I think he is going to make it big in the UK!"
Beth, 11, Liverpool, England
"Justin is my fave singer in the world. I love the new album."
Georgia, 10, Kent, England
"I love the album and can't wait for part two!"
Harbinder, 13, Wolverhampton, England
"It's great that Justin has become so famous, but I really don't like him. His songs are annoying, he sings like a girl and I do not understand why loads of people are in love with him? I can't get the song One Time out of my head, in a bad way!"
Jessica, 11, Fife, Scotland
"Justin Bieber is amazingly talented, majorly popular and I think he is great!"
Ail, 12, Manchester, England
"I like this album!"
Ella, 7, West Midlands, England
"OMG! I love Justin Bieber! Not only is he gorgeous but his album is amazing. I love his song One Time, it is really good. How can you not love him?!"
Frankie, 13, Edinburgh, Scotland
"I love Justin's songs!"
Beth, 10, Greater Manchester, England
"He is soooo awesome!!"
Jayden, 10, London, England
"I love Justin Bieber and I love all of his songs! My favourites are Love Me and One Time."
Megan, 13, Port Talbot, Wales
"Definitely one of the best albums I have bought."
Rosie, 13, West Midlands, England
"I don't really like the album, not my type."
Linanate, 13, Cardiff, Wales
"His album is amazing. I don't understand why some people don't like him!"
Aqua, 6, New York, USA
"He is amazing and really cute!"
Rosalie, 11, Ontario, Canada
"The album is really cool and there are some happy songs!"
Becky, 14, Bristol, England
"The album is AMAZING! I just totally love Justin Bieber!"
Claire, 10, Lanarkshire, Scotland
"It is the best album in the WHOLE world. I have pictures of Justin ALL over my room! He is the best."
Millie, 11, London, England
"I love the song One Time. It is the best song I have heard."
Solin, 7, London, England
"I think that his album is amazing and he can really sing. I listen to it all the time."
Katherine, 9, Inverness, Scotland
"Love this album. It is the best I have ever heard! I can't wait for the next part to come out. Although there are only seven songs on the album, they are the best songs ever!"
Tamsin, 13, Midlothian, Scotland
"I love this album!"
Natalie, 10, Doncaster, England
"The Justin Bieber CD is so cool!"
Emma, 12, West Midlands, England
"I have only listened to one of his songs and it was amazing!"
Ruby, 9, Huddersfield, England
"I think My World is a brilliant song. I can't stop singing it."
Simi, 7, Essex, England
"He is totally cool and his songs are fabulous."
Louise, 10, Scotland
"I think he's really talented for his age."
Hannah, 11, Leeds, England
"I think for Justin's age he's doing great."
Teona, 9, Croydon, England
"I don't like him very much. I think his songs are too cheesy!"
Lauren, 14, Cheshire, England
"I LOVE JUSTIN BIEBER! My World is the best album I have ever heard."
Sophie, 11, Berkshire, England
"I think Justin is a brilliant singer, he is great! You rule JUSTIN!!"
Tyra, 12, Essex, England
"I love Justin Bieber's album. My fave song is Love Me."
Sadie, 11 Derbyshire, England
"No one can not stop singing his songs! He is such a good singer and I think everyone will be singing his songs in 20 years time! I love Justin Bieber!"
Catherine, 13, West Lothian, Scotland
"I don't like him, he's for people who like Pop, and I like Rock."
Tyla, 12, Middlesbrough, England
"I really love Justin Beiber and especially One Time, it is just brilliant. GO JUSTIN!!"
Courtney, 12, Essex, England
"He's cute and I love his album, mostly Favourite Girl!"
Chloe, 8, West Midlands, England
"It is really great. One Time is my favourite, it is truly amazing and he is a true genius!"
Katy, 9, Luton, England
"I think that Justin is really talented and I am going to get his single!"
Elisa, 10, Surrey, England
"I love this album, I listen to it all the time. All the songs are brill and I am going to buy part two! I can't wait for it to come out!"
Nicole, 13, Falkirk, Scotland
"I am getting his CD for my birthday. I have listened to all of the songs and they are all really good."
Lydia, 12, Liverpool, England
"I love Justin's songs, they are all really good and I hope he comes to tour here!"
Ffion, 11, Birmingham, England
"I love Justin, he is just so cool and all his songs are amazing. I am listening to his album right now!"
Izzy, 11, Oxfordshire, England
"I love him, he is so cute, but he sings a little bit like a girl! He also sings way too high in some bits of the songs, but the lyrics are brilliant."
Rosey, 10, County Armagh, N. Ireland
"I thought his album was great. I want to become famous like him one day. I've already got a good voice."
Ben, 11, Wigan, England
"I love One Time, it is the best music I have ever heard."
Ashley, 7, Edinburgh, Scotland
"I think that he uses styles of singing that have already been used and it is kind of boring."
Mat, 13, Bradford, England
"I love Justin Bieber! He is such a good singer! I need to get his album! He is amazing!"
Phoebe, 13, Pembrokeshire, Wales
"I haven't got his album yet but will soon. I love his music, all my friends at school say I am obsessed!"
Jodie, 13, Manchester, England
"I think he has worked really hard to get to this point and he has done really well. I think very soon he will be as good as all the other singers."
Tiegan, 10, Lincolnshire, England
"Justin Bieber is one of the youngest singers I have ever heard of! I think he is a good role model for young people everywhere."
Shannon, 12, Liverpool, England
"Justin Bieber's music is great. Most of his songs are about love, but they have a great beat!!! He is a great singer!"
Billie-Jo, 12, Surrey, England
"OMG! Justin Bieber's CD is like totally cool! Love you Justin."
Kiana, 10, Bay of Plenty, New Zealand
"I actual LOVE Justin Bieber! I love ALL his songs, I couldn't pick a favourite one as they are all soooo amazing!! I listen to them EVERY day."
Georgia, 12, West Sussex, England
"I think he is quite good for a 15 year old. He is a good singer but the music in the background is quite rubbish."
Tamara, 11, Surrey, England
"He's not my favourite music act. I like One Time and that is about it. I love him though!"
Emma, 13, Buckinghamshire, England
"I think Justin Bieber's album is great and I love One Time!"
Tilly, 8, Lincoln, England
"I love Justin Bieber, I think he is great and his song is brilliant."
Katie, 13, London, England
"Justin Bieber is great and I am really upset that his song didn't make it to number one."
Helena, 13, East Sussex, England
"His songs are so amazing and his style is awesome! My friends and I can never stop playing his songs."
Megan, 13, Hastings, England
"I think Justin Bieber is cool and One Time is a good song."
Fahim, 10, London, England
"I bet Justin expresses his feelings through his songs. I listen to his music all the time. He sounds like a great guy and I can't wait for his next part of My World! YOU ROCK JUSTIN!"
Brianna, 9, Arizona, USA
"Justin Bieber is great and I love all his songs. I bought his album yesterday and I know all the songs word for word. I have been listening to them for ages!"
Emily, 11, Leicestershire, England
"Yes, I have it on my iPod. It is OK. I like three songs on it and the rest are OK. I wouldn't listen to it all the time."
Anna, 10, Galway, Ireland
"This album is awesome! I love him!"
Charlotte, 12, California, USA
"I love Justin's album. There may not be many tracks but each one has a different talent of the singer in the song, which is what really matters."
Harriet, 14, Bristol, England
"No offence or anything but, to be honest, he's rubbish. I really don't like him. How on earth did his song One Time get loads of good reviews? I mean, well done and all that for becoming famous at that age but, I have to say, the songs are really not that good even though they are slightly catchy."
Louisa, 12, Herefordshire, England
"I think his new album is the best in the whole world and it is mine and my mates' fave CD at the moment. He has a good selection of songs in his style of music. I rate this album 10 out of 10!"
Sarah, 11, County Durham, England
"I LOVE JUSTIN BIEBER!! HE IS AMAZING!! He is so talented, his voice is beyond amazing and he is soooooo hot!"
Drew, 12, London, England
"I only just heard about him but I love his music. It's really cool and sweet!! No wonder Taylor Swift's a fan!"
Ellie, 13, Northampton, England
"I heard this guy a few months ago and loved his style and the CD! You Rock Justin!"
Nisha, 11, London, England
"OMG!! He is the best singer in the whole entire world! Love the album!!"
Kirsty, 10, Glasgow, Scotland
"It is the best CD ever. I listen to it over and over again. I love you Justin Bieber, keep it up!"
Sophie, 14, Leicestershire, England
"I think he's great. I can't believe he's famous at the age of 15! He is also sweet and he has been working with other stars. I wish I was like him!"
Hannah, 10, London, England
"I love JUSTIN BIEBER and of course I'll still be humming his songs because I can't get him out of my head! I can't wait for his next album!"
Maxine, 12, London, England
"I think the album is amazing and I love the song One Time. I can't get it out of my head!"
Georgie, 12, Cambridgeshire, England
"Justin's got a huge talent but I am not keen on his songs. My mum loves the song, Love Me, although I don't see the point in why people enjoy him so much? To me, he is just not a good enough singer!"
Lylah, 10, Paris, France
"This is the best album ever! I love him!"
Rubie, 11, Surrey, England
"I don't like Justin, he's got a really cheesy girls voice!"
Katie, 13, London, England
"I love Justin Bieber and I love all of his songs, especially One Time! I got the album yesterday. Go Justin!!"
Sonia, 11, Yorkshire, England