The Arctic Monkeys have topped the charts for a second time with their latest single When the Sun Goes Down.
Arctic Monkeys last topped the charts in October
The rockers have a large fanbase thanks to the marketing power of the internet.
X Factor winner Shayne Ward's song That's My Goal had been number one for four weeks but it was knocked down to number five.
Nasty Girl by Notorious BIG, Diddy and Nelly is at two, followed by Will Young's All Time Love and Beyonce's Check on It, featuring Slim Thug.
Arctic Monkeys previously topped the charts in October with I Bet You Look Good on the Dancefloor and are releasing their debut album, Whatever People Say I Am, That's What I'm Not, on Monday.
THE SINGLES CHART
1. When the Sun Goes Down - Arctic Monkeys
2. Nasty Girl - Notorious BIG, Diddy, Nelly
3. All Time Love - Will Young
4. Check On It - Beyonce ft Slim Thug
5. That's My Goal - Shayne Ward
They were signed to record label Domino, home of Franz Ferdinand, in June 2005.
Former number one The JCB song, by folk-pop duo Nizlopi, has been in the charts for seven weeks and is at number six, followed by Sunblock's revamped Baywatch theme I'll Be Ready.
Indie bands Hard-Fi and Editors took numbers one and two respectively in the album charts with Stars of CCTV and The Back Room.
James Blunt's huge-selling album Back to Bedlam album slipped down to number three while former Pop Idol winner Will Young's Keep On rose six places to number four.
US rapper Eminem's compilation album Curtain Call - The Hits was at number five.
The performer, who recently remarried his ex-wife Kimberly Mathers, has said the album may be his last.