Jessica Simpson needs to start taking shots to boost her buttocks, according to rapper Ludacris.

Simpson, who recently split from her husband Nick Lachey, made no secret of working hard on boosting her behind for her role as DAISY DUKE in the recent Dukes Of Hazzard remake, but her efforts have failed to impress Ludacris.

He tells MTV's TRL, "Jessica Simpson is flawless except for one thing - I would get her a bunch of little butt shots. She needs the injections in the behind."

He adds, "Okay, I take it back, she need a new man for Christmas. I'm a Jessica Simpson fan, don't take it the wrong way at all."