Originally posted on Hollywood Life:
Justin was spotted with another new mystery girl in Sin City after being out until 6 a.m.! Is he trying hard to get over ex-girlfriend Selena Gomez?
Justin Bieber was spotted returning to his Las Vegas hotel at 6 a.m. after a night of partying June 29 — and he wasn’t alone! The “Believe” singer emerged from his tour bus at dawn, followed by a mystery girl dressed in jeans and a cutoff shirt.