Some of our favorite celebrities kicked the holiday season into full gear at this year's iHeartRadio Jingle Ball in LA last night. Taylor Swift [1] and Ed Sheeran were in attendance and surprised fans with a performance of "End Game [2]," a song from Taylor's latest album, Reputation. The annual star-studded event also featured performances by Demi Lovato [3], Sam Smith, Kesha, Liam Payne, Macklemore, and Halsey, to name a few. Read ahead for the fun moments we've rounded up from the ball that will make you feel all cozy inside.