Mark Ronson and Bruno Mars perform ‘Uptown Funk’ on finale of ‘The Voice US’ – watch

Mars put his hair in curlers for the occasion

Mark Ronson and Bruno Mars performed their single ‘Uptown Funk’ on the season finale of The Voice US last night. Watch their performance below, now.

The live version of the song saw Ronson play guitar with Mars wearing his hair in curlers and singing the song. Other performances on the show came from Ed Sheeran and Jessie J.

‘Uptown Funk’ is currently the official UK Single Chart Number One, but faces stiff competition from X Factor winner Ben Haenow in the Christmas Number One race.

As reported, Haenow’s single ‘Something I Know’, written by Ryan Tedder of One Republic, is currently in the lead after 24 hours on sale with the song having been downloaded 75,000 times. Official Chart Company data shows that as of midnight on December 15 Ronson’s single is 23,000 sales behind.

Ronson told NME this week that he would feel “guilty” if he were to be Number One this Christmas and that he wishes “he had enough time to make a Christmas version of his single”.