There are mere days left until Glee [1]'s final season premiere on Jan. 9, and we're getting a little restless. First, we got to see Rachel singing Frozen's anthem, "Let It Go," [2] and now, The Warblers are taking on Ed Sheeran's "Sing." It's the perfect song for Dalton's all-male group, and Blaine even joins in to help hit those high notes. Watch the full video below, and check out all the pictures from the premiere [3]!