Corden and his hilarious antics are the last thing you want in your dressing room before you go on stage.

The iHeartRadio Jingle Ball took place in The Forum in L.A recently and the backstage area was brimming with musicians getting ready to go on.

James Corden showed up with a camera crew, ‘became’ general manager of the venue for the night, and had VIP access to all the A-listers including Ed Sheeran and Demi Lovato amongst others.

He puts ice-cream in a baguette, asks Niall Horan about the haemorrhoid cream on his rider, watches the Big Bang Theory with Louis Tomlinson and steps in as one of Taylor Swift’s back-up dancers.

Yeah, it’s that kind of video.

We’re not really selling it, are we?

Check it out here: