CELEBRITY
07/11/2013 08:29 am ET Updated Sep 10, 2013

Selena Gomez Is Taking Justin Bieber Back But There's A Catch

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Justin Bieber's single days are officially over ... again ... for now ... 'cause he's back on with Selena Gomez -- but TMZ has learned there's one major catch -- he's gotta stop acting like a d-bag.

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