Key points:
A) He really 'makes the song his own' and not in the useless talent show judge empty statement kind of way, but in the 'bloody hell this actually sounds like Patrick Wolf tune' kind of way.
B) Apparently he did it a few days ago as part of an appearance on the Dermot O'Leary radio show but we've only just heard it because frankly life is too short to be listening to radio shows hosted by that obsequious cretin.
C) It wouldn't have hurt him to do 'Call Me Maybe' though, would it.