Tuesday, March 1 2011. Teen idol Justin Bieber apologizes on his Twitter for flipping off photographers last night on his 17th birthday. The "My World" star had dined out with girlfriend Selena Gomez at Maggianos to celebrate the special occasion. On his Twitter, the pop singer wrote, "had a great bday and at the end of the night we got surrounded by paps and i reacted in a way i know better. im sorry."