• Share
  • Tweet
  • Share
Danica McKellar

Phamous/AKM-GSI

Someone is already in shape for her big return to prime time.

Danica McKellar was spotted heading to rehearsal for Dancing With the Stars today in L.A., and she was showing off a cha-cha-ready figure in nothing but a tank top, teeny shorts and leg warmers with Ugg boots.

The 39-year-old former star of The Wonder Years and author of several math textbooks has been paired up with Valentin Chmerkovskiy and she'll be competing against a lineup that includes fellow former teen star Candace Cameron Bure and current teen star Cody Simpson.

Dancing With The Stars, DWTS

ABC/Craig Sjodin

Of course, Danica's partnership with Val will last only as long as the viewers let it, as the ABC show is introducing for the first time a partner "switch up" a few weeks into this season.

Val has already expressed his lack of enthusiasm for the change, telling E! News bluntly, "It's horrible. It's so cruel, so cruel." 

So you can bet that he and Danica will be gunning for Derek Hough (who actually suggested that DWTS do this years ago!) and his partner, snowboarder Amy Purdy, once the season gets underway March 17.

Who else can't wait to see Danica and Val hit the floor?!