Justin Bieber performed his final U.S. show of his Believe tour last night and invited along a surprise guest: Nathan Sykes from The Wanted. Nathan took the stage along side Ariana Grande to perform their duet "Almost is Never Enough."
Afterwards, the singer went on Twitter to thank both Ariana and Justin for having him.
Amazing night. Can't stop smiling. Cheers to @ArianaGrande and @justinbieber for having me— Nathan Sykes (@NathanTheWanted) August 11, 2013
Amazing night. Can't stop smiling. Cheers to @ArianaGrande and @justinbieber for having me
Check out the video of their performance below, then let us know what you think of their new song!