The 'Boyfriend' singer - who is dating fellow teen star Selena Gomez - finds himself attracted to girl's bottoms, and can't help but have a soft spot for rapper Nicki, who is famed for her large derriere.
He told Q magazine: ''I think I'm a butt guy. I just like butts. I'm attracted to them. Do I have any favourites? Nicki Minaj has got a nice one.''
When asked who he would like to follow him on twitter, he added: ''Beyonce. She's so sexy. I'm in love with everything about her. But I love Jay-Z, so I can't do anything about it. I've had a crush on her for a long time.
''But I wouldn't come between them, I would never do that. But I'm going to make her follow me just by keeping talking about it.''
Justin is also going on tour in support of his recently released 'Believe' album next year, announcing six UK dates for next February and March.
Justin Bieber UK tour dates, 2013:
Feb 19 - Manchester, Arena
Feb 23 - Sheffield, Motorpoint Arena
Feb 24 - Liverpool, Echo Arena
Feb 27 - Birmingham, The NIA
Mar 02 - Nottingham Capital FM Arena
Far 04 - London, The O2
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