Jessica Simpson says marrying Nick Lachey was her biggest money mistake!

Jessica Simpson & Nick Lachey

Jessica Simpson & Nick Lachey. Photos: Getty

Jessica Simpson has just thrown some serious shade at her ex-husband Nick Lachey!

The 35-year-old joked that her first marriage was one of the worst financial mistakes she's ever made during an interview on CNBC's Closing Bell.

When asked by host Kelly Evans to name some of her biggest money regrets, the blonde beauty - who now owns a billion-dollar clothing company - blurted out, "The biggest money mistakes? I don't know. For some reason I thought of my first marriage!"

"That's actually a common answer, believe it or not," Kelly then replied. Awkward!

RELATED: Jessica Simpson Talks Weight Loss And Sex Life

RELATED: It's A Girl For Nick And Vanessa Lachey

The former couple gained popularity with their MTV show Newlyweds: Nick And Jessica back in 2002, before filing for divorce four years later.

Nick has since married Vanessa Minnillo in 2011, while Jess got hitched to her baby daddy Eric Johnson in 2014.

[[img:29497589|caption=Jessica Simpson. Photo: Instagram|link=|size=O|alt=Jessica Simpson]|target=_blank]

GALLERY: Jessica Simpson's Craziest Tweets}target=_blank