12/08/2011 10:11 am ET

Jessica Simpson Lawsuit: Singer Sued For Gaining Weight

When you hear about celebrities fighting a legal battle over a video they don't want anyone to see, your mind usually goes straight to a sex tape. However, when it comes to Jessica Simpson, the video in question is an exercise tape shot in 2005 that is still the center of an ugly legal dispute.

"Jessica did an exercise video about losing weight [that was never released] and instead she chose to gain weight and cash in on it," Alex Astilean, CEO of SpeedFit tells me.

Astilean also believes he has new evidence that Simpson never wanted to be the spokesperson for his exercise tape in the form of an interview the singer did with Lucky magazine in which she explained that gaining weight was good for business.

Simpson was reportedly paid $500,000 to make the exercise tape but her camp argues that SpeedFit did not produce a suitable final product. After years of legal disputes, Simpson won and Astilean was ordered to pay her business manager for defamation. But the fitness company CEO isn't letting Simpson off the hook.

"I am asking for a new oral argument and this time will be represented by a law firm," Astilean tells me. "I strongly believe the Supreme Court will prove I am right."

A spokesperson for Simpson had no comment.