Excuse Me, Meester

Photo courtesy: WireImage

Leighton Meester took a break from filming her hit TV show Gossip Girl to rock the stage at Haze Nightclub at Aria Resort & Casino in Las Vegas.

The onstage look is a bit severe, but then again Miss Meester can't be Blair Waldorf everyday...

The vegas crowd watched the starlett belt out her two hits Somebody to Love and Good Girl Gone Bad. Hmmm...may be a good time to start pimping out the rest of that album!

Check out that stage presence. Daayum, girl! Must be taking notes from your Gossip co-star and fellow rocker Taylor Momsen.

You know we love you - XOXO