Jessica Simpson performs a concert before the NASCAR Sprint Cup Series Bank of America 500 auto race

Dressed in black shorts and a Dale Jr black top, Jessica Simpson seemed happy to flaunt her newly-acquired curves as she performed at at Lowes Motor Speedway prior to the Bank of America 500.

Jessica Simpson may be regretting opting for short shorts whilst performing on stage recently, after her unflattering hotpants showcased her cellulite.

The Newleyweds star – who recently admitted to being a nervous eater – has pilled on the pounds in recent months.