Come on, you were all thinking it! Could we be about to see the Doctor take on an alternative reality in which Wham! are a pair of musically disguised aliens bent on world domination through the art of song? Erm, probably not! Stranger things have happened in Steven Moffat's Christmas Specials, though, you'd probably agree, and we have been told that this year's adventure is all about dreams. Wake Me Up Before You Go-Go, anyone? It all makes sense! Too much sense... In all seriousness, it's probably clutching at straws to presume that this 1984 Christmas classic was the sole inspiration behind the title of the festive episode, but you can be forgiven - and it was no doubt Steven Moffat's intenion - for having it stuck in your head between now and Christmas Day. Wonder if George Michael will be getting any royalties...