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Justin Bieber

Fellow pop star Justin Bieber unsuccessfully attempted to look like a tough guy -- in a backwards baseball cap and bad boy pout -- while out and about in Beverly Hills earlier this week. Those digitized flamingos on his T-shirt definitely elevate his street cred. (4/10/2012)

What Were They Thinking?!

This week's worst-dressed stars include Lana Del Rey, Justin Bieber, and Nicki Minaj. -- By Matt Whitfield, Yahoo! Staff