[MarkWaldorf]

People seem to be underestimating George. He's one of the best male vocalists of his time and still has a huge fanbase even today. Plus, he's one of the only artists that hasn't already been on the show this year, so there'll still be the 'Wow' Factor for his comeback. Daren't I mention Robbie's last X Factor performance?

They're pretty similar too, so there's the potential for an amazing duet. Each duet could be good though, although Stacey's is pretty random and I have no clue what they'll even sing.