Jessica Simpson -- Nick Lachey Was My Biggest Money Mistake

Jessica Simpson just called out Nick Lachey big time -- saying their marriage was one of the worst financial mistakes she's ever made.

Simpson was on CNBC's "Closing Bell" Thursday when she was asked about any money mistakes she's made that have helped her learn and grow as a businesswoman. Simpson doesn't miss a beat before saying, "my first marriage."

With a reported worth of $150 million, it's safe to say Jessica has learned a lot when it comes to cash.