Feb. 12, 2007 | 03:15 PM EST
After the Grammys, Beyoncé Just Keeps Going
Photo by: Jason Merritt / FilmMagic
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Ever wonder what it's like to party with
Beyoncé? Yeah, so did we. And then, Sunday night, we got our chance. Check out
PEOPLE's exclusive video from inside the singer's post-Grammy bash, where
Mary J. Blige, Mischa Barton and more danced the night away. Make sure you watch it to the very end, for a very special treat from
John Legend.
