Which Glee Star Was Spotted Cheek-to-Cheek With DWTS' Gilles Marini? (PHOTOS)

We're used to seeing Gilles Marini getting close with Peta Murgatroyd in the Dancing With the Stars ballroom, so we had to do a double take when he was seen cheek-to-cheek with this female Glee star. Want to know who it was? Click to the next slide to find out.