Keri Hilson is somewhat of a chameleon these days.? The “Pretty Girl Rock” diva changes looks like the weather!

Keri recently hit the red carpet of the 2011 Billboard Music Awards with a slightly longer doo. She’s been blond for a while now, and just last week she was rocking a cute lil short doo at the BMI pop awards.

[READ: Keri Hilson Butchers Whitney’s “I Have Nothing” PHOTOS/VIDEO]

Keri also hit the stage of the awards to introduce Mary J. Blige’s performance… CLICK HERE to watch.

Black, Blonde, Long or Short, Keri is still “pretty girl” rockin’…

More photos below: