J-Simp Accidentally Bares Sweet Butt-Cheeks

Buxom blonde songbird Jessica Simpson provided concert-goers with a fanny-tastic blast of her bare butt last night.

Taxi Driver Movie has got the pics of the former Mrs. Lachey's skinsationally tasty seat-meat.

Can her nakedly mam-nificent boobs (or, as her father refers to them, "double-D suckers") be far behind? Or up front? Or ... wherever! Jessica, just get nude soon!

Mr. Skin is on his knees and all a-pucker.