Lately Ed Sheeran has been joined on stage by some pretty big celebrities like Beyonce and Chris Martin, but this weekend he was the guest star to James Bay.

James Bay, who hit the pop scene earlier this year with his song 'Hold Back the River,' played in Cambridge England Sunday where he was joined on stage by Ed Sheeran. The two played guitar and traded vocals on Jame's single 'Let it Go.' No, not the song from the Disney movie, 'Frozen.'

Check out the duo's performance, and let us know what you think.