Justin Bieber hit the gym for a spread with Cosmopolitan magazine and then the singer got down and dirty with a series of quick-fire questions. During the line of questioning, Bieber unveils his likes and dislikes of women's fashion, shaping the wardrobes of Beliebers for years to come. 

The style Bieber hates is "gladiator sandals," while the look he loves is "booty shorts." Bieber also dishes on which of his many tattoos is his favorite, telling Cosmo it's his owl and jokes about what he's planning on getting inked next. "[A] tramp stamp, LOL." If you're wondering what that sound is, it's the whooshing of "booty shorts" flying off the shelves at teenybopper retailers everywhere.

You can watch behind-the-scenes footage of Bieber's shoot with Cosmo below.