Mary Murphy is heading back to the judge's seat for the eighth season of So You Think You Can Dance after taking a year off to fight thyroid cancer. "I'm navigating through that like probably so many people are," she says to Rach. It's obvious the bubbly Mary hasn't lost her sense of humor as she jokes that the toughest part of her recovery has been the diet. "They're saying no meat, no dairy whatsoever, no processed foods - what is left?"

Mary says she's feeling great and is now looking forward to the new season of her reality dance show. Her return is not the only change fans will notice. "Instead of 10 contestants this season it's going to be 20!" she announces. New judges will also rotate through the panel. "It keeps it fresh for us too, because I never know who is going to be sitting next to me!"

Rachael asks Mary to show off some moves and the dancing pro offers to teach her and an audience member a new step. Check out their dance lesson!