Say hello to a slightly dodgy falsetto: Justin Bieber performed 'Boyfriend' live for the first time on The Voice finale last night.
The performance was all about the voice, some dancers, smoke machines and a couple of perspex benches.
"I mean, I had a great time, did you?," Justin said afterwards and even Christina Aguilera made sure she looked like she was enjoying herself this time round.
Watch out for the lyric mishap around the 1:50 mark, but other than that, well done Justin.
You can see it here.