An unsuspecting couple got the surprise of their lives when Justin Bieber and his girlfriend Selena Gomez decided to crash their wedding. The teen superstars where greeted with cheers and screams from the bride and groom, Jeanine and Rob McCool, when they made an impromptu appearance at the wedding reception over the weekend. Bieber and Gomez decided to crash the wedding after driving by the venue and hearing Bieber’s hit song “One Less Lonely Girl” blaring from the sound system.