Justin Bieber Flips Off Paparazzi After Dinner with Mystery Blonde

Bieber is low key in London
Justin Bieber wears a baseball cap and hides his face behind the collar of his jacket as he gets a little shopping done while on break from his My World tour. (Bauer Griffin)more pics Could this be JB's mistress? (FlyNet)
 What will Selena Gomez think?

Justin Bieber let his temper get the best of him in London this week when he flipped the bird at photographers scrambing to get a shot of him heading out to dinner.

No big deal, except Bieber's fanbase is mostly underage and therefore completely scandalized by actions like these. Oh, and Bieber happened to be out with an attractive blonde.

The lucky lady has yet to be Identified, but she looks a little too old to pose much of a threat to Justin's super-famous lady love, Selena Gomez. Even though there's that rumor about him having assignations with Mariah Yeater, who's a good three years older than he. Hmm.

If you were Selena, would you be jealous?

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