Is Justin Bieber trying to prove he's a tough guy?
Justin and Mayweather even took their friendship to the friendly skies. Over the weekend, the "Boyfriend" singer posted a picture to his Instagram account of the athlete aboard a private plane, surrounded by wads of cash, reading USA Today with his feet propped up. "That's why they call him money Mayweather," he wrote.
J.B. could be aiming to add some rebellious edge to his nice-guy image, or just trying to scare off the paparazzi. Either way, we wonder what Selena Gomez thinks of her beau's attempts to bulk up.