Recognize the Reveler: Who's Flipping the Finger?

Which blond singer is showing off her damaged digit?

Here's a Hint: This blond singer has a hit song that's getting major airplay and she's clubbing at NYC hot spot Butter, so why's she giving us a digital diss? Maybe she's just trying to show off her injured finger to gain some sympathy points from her paparazzi pals.

Judging by her tacky getups, the only person she should be mad at is her stylist. Think you know who's flipping off photogs? Get the answer right here!