Credit: Karl Larsen/; Chris Gordon/

Dancing With the Stars pro Lacey Schwimmer has become a staple on numerous worst-dressed lists, and given the outfit she wore in Hollywood Thursday, it's not hard to see why.

Evoking memories of Jessica Simpson's 2009 fashion disaster, the 23-year-old donned a pair of high-waisted mom jeans that did little to flatter her fit figure. Schwimmer paired the denim look with a backless black top that exposed her acid green bra.

Schwimmer -- who is also an aspiring singer -- is paired with transgender contestant Chaz Bono on this season of Dancing With the Stars.

"I've always been a huge supporter of the LGBT community and I couldn't be more excited to have Chaz," she recently said. "Not only is he Sonny and Cher's child, but he's also a generally cool person."

The 13th season of Dancing With the Stars premieres Monday at 8 p.m. EST on ABC.