Or is it Radio GaGa week?
No seriously, I'm confused, which is it meant to be?

It's both

It's both.

TYVM both of you.

It's Queen Vs Lady Gaga week

I expected more mash-ups though

both - they can sing songs from either artist.

There won't be mash-ups this week because Johnny isn't in the contest.

Interesting that so far the woman did a Queen song and the man a GaGa song.

The best Queen performance I recall on the X-Factor was Joe McElderry doing Somebody To Love in 2009. Of course before there were themes we had G4 doing Bohemian Rhapsody.

Both.

They love Queen on XF. Not my favourite theme. If you're not crazy about either then it's not that much fun to watch.

Little mix starting off on Radio GaGa