Justin Bieber Shoots X Factor With LA Reid | Pictures

Selena Gomez showed off her legs in a short lace dress on the set of Feed the Dog in LA yesterday. Selena's costar Heather Graham was also on location and had a busy day with two outfit changes. While Selena worked on her latest project, boyfriend Justin Bieber also found himself in front of a film crew. Justin was greeted by L.A. Reid to record a piece for The X Factor. Justin will appear on The X Factor as a celebrity mentor for L.A.'s team.

Justin's manager, Scooter Braun, was also on hand for what was a day of reminiscing. Scooter and Justin secured their first recording contact from L.A.'s Island Records back in 2007. Justin tweeted, "Long day but great day. L.A. Reid and Scooter Braun — just like old times! Thanks!" Scooter shed light on his relationship with Justin in the latest The New Yorker. Scooter told the publication, "Justin's and my relationship is not a manager-artist relationship. When he was thirteen, I said, 'If you stop singing, if you never dance again, if you never play again, I'm going to be in your life.'"