Yes, I saw him Wildchild. Not dressed in his white suit either - a black top and a rather natty pair of stripy trousers!
He did very well singing live but, to me, the arrangement of the song is just a little bit uninspiring and, dare I say it, <whispers>
boring 
I thought the audience reaction during the song was a little bit muted too.
Having said that, he did look extremely cute!