We don't even need to hear the song to know that this is going to be amazing!
Last week, Ed Sheeran announced his new album, called 'No.6', which will feature a range of surprise artists in each track.
And while he's tried to be keep each collab a secret, he's just let slip that one of them will be with Bruno Mars!
In a new YouTube video, Ed began by saying he really wanted to make a 'Lady Marmalade' style song with Justin Bieber and Bruno Mars but instead, ended up recording individuals songs with them both.
Fast forward to 4.47 in the video below to hear Ed talking about hisupcoming song with Bruno.