Marcus and Gary, simply because I think they have a great song, and have already duetted this week in one of the finest music venues in this country, in front of royalty and Marcus did a great job of it. I think people seem to forget how popular Gary is, and what a lovely voice he has.
However like last year and Rebecca we could have some bad duets, and I am just hoping Barlow and Collins is not one of them.
Wembley will also prove no problem for Gary he has performed there often enough.