[CharlotteSometimes]

It's not teenage girls, or housewives, that vote most - it's women in general. But probably those two groups more than any other, as they're the most likely to be at home on Saturday nights.

Teenage girls aren't likely to vote for Journey South, as they're too old and middle of the road. But they've got the housewives' vote in the bag, for sure. Shayne will pick up votes across the board, but Andy seems to have the narrowest fanbase of all.

The poll on GMTV earlier today had Journey South at 43%, Shayne at 40% and Andy at 17%. The bookies have Shayne as favourite - his shortest odds are 8/15, and his longest are 8/11. Journey South aren't far behind, with shortest odds of 6/4 and longest odds of 2/1. Andy is miles behind - his best odds are 6/1, and his worst 17/2.

None of that takes song choices or performances on the night into account, though.