Justin Bieber was spotted singing in videos posted on Youtube.
He's come a long way since then. He's now a global platinum selling pop star with a number 1 in 32 different countries.
He's performing in Birmingham's NIA tonight and tomorrow and Nottingham's Capital FM Arena on Saturday.
More top news
Journalist Steve Hewlett, who shared his experience of battling cancer on BBC Radio 4, has died of the disease at the age of 58.
We asked the candidates running for the Stoke Central seat in this week's by-election five questions, to help you get to know them.
Adam Colclough from the Green Party answers five questions ahead of the Stoke Central by-election.