Passage: Bieber was born on March 1, 1994, in London, Ontario, at St Joseph's Hospital, and was raised in Stratford, Ontario. He is the only child of Jeremy Jack Bieber and Patricia "Pattie" Mallette, who were never married. Mallette was underage when she gave birth, and her mother Diane and stepfather Bruce helped her raise her son.  His mother is of French-Canadian descent; his paternal great-grandfather was of German ancestry, and his other roots are English, Scottish and Irish. He has also claimed that he has some undetermined Aboriginal Canadian ancestry.Through Jeremy, Bieber has three younger half-siblings. Jeremy and his ex-girlfriend Erin Wagner, who broke up in 2014 after seven years together, have two children, daughter Jazmyn and son Jaxon. Jeremy married his girlfriend Chelsey in February 2018, and they have a daughter named Bay. Bieber also has a stepsister named Allie, the daughter of his stepmother. Pattie worked a series of low-paying office jobs, raising Bieber as a single mother in low-income housing. Bieber has maintained contact with his father.Bieber attended a French-language immersion elementary school in Stratford, the Jeanne Sauvé Catholic School. Growing up, he learned to play the piano, drums, guitar, and trumpet. He graduated from high school in Stratford, Ontario, the St. Michael Catholic Secondary School in 2012 with a 4.0 GPA. In early 2007, aged 12, Bieber sang Ne-Yo's "So Sick" for a local singing competition in Stratford and was placed second. Mallette posted a video of the performance on YouTube for their family and friends to see. She continued to upload videos of Bieber singing covers of various R&B songs, and Bieber's popularity on the site grew. In the same year, Bieber busked shows in front of Avon Theatre steps during tourism season.

Question: What song did Bieber sing in an early 2007 Stratford singing competition?
So Sick