When we heard rumors that Gwyneth was returning as our favorite substitute teacher Holly Holliday on Glee, we were crossing our fingers it would really happen. Well, guess what folks…it's confirmed! Early this morning, the show's creator Ryan Murphy posted this pic of her and Kristin Chenoweth in their guest star garb (that tweed skirt is everything), captioned "They're back." Yes. They. Are. Both ladies will appear on the show's 100th episode, a two-part special airing on March 18 and 25. What will Gwynnie sing this time? Fingers crossed she busts out some new Beyoncé. They are BFFs after all.