PHOTOS: Backstage At iHeartRadio Jingle Ball

Go behind-the-scenes of our 2017 iHeartRadio Jingle Ball presented by Capital One at The Forum in Los Angeles on Friday (December 1) to see just went down when stars like — and — took to the hallways of the famed venue to mingle with their peers, greet fans and spread the holiday cheer during the jam-packed show which was hosted by KIIS FM.

Ed Sheeran, James Corden, and Ryan Seacrest having a blast backstage.

Ryan Seacrest and Santa Claus

James Corden and Santa Claus

Photos: Getty Images for iHeartRadio