Because it's her only day off. :)

The first episode I ever saw — completely by accident — was the first episode of series one. The pure audacity of centering a farce around the death of Richard III had me in stitches.

It was cool to see Paltrow in drag for the bit, but all the moment really did for me was to remind me of how funny the Mrs. Lincoln bit was.

Interesting theory. Demi didn't look any more thrilled to be there than they did to have her. Not after her first episode, anyway. She didn't seem that thrilled to be on X-Factor, either.