Beyonce Knowles - 31st Annual Kennedy Center Honors in Washington

Over the weekend, she was busy checking out Art Basel in Miami, and last night (December 7)  Beyonce Knowles flew up to Washington DC for the 2008 Kennedy Center Honors.

The “Crazy in Love” songstress was spotted hamming it up on the red carpet, looking ravishing in a strapless black corset-style dress teamed with a prom-style updo before performing for the long list of dignitaries and celebrities in attendance.

And it sounds like Knowles may be planning a trip to England to perform on “The X-Factor,” effectively casting aside her feud with the show’s creator  Simon Cowell.

Beyonce is scheduled to perform on the show’s finale December 13th, despite Cowell’s comments years ago that she’s “not sexy,” and “not a good singer.” Back then, she rebutted, "Simon wouldn't know a hit song, image or talent if it hit him in the face."

A rep from the show told press, "Beyonce and Simon can put their differences from years ago to one side. He is way past it. Beyonce singing live is something to behold and would just be brilliant."

GossipGirls