Last week we decided to flip reverse it and ask you 'Whose bum is this?'

The answer, as pretty much all of you managed to work out, was racket-thrashing Spaniard Rafael Nadal.

The word "globular" comes to mind, doesn't it? Anyway, moving on, this week we're challenging you to guess the owner of this well-toned celebrity back.

Right-o, just deposit your answers in the space below and we'll reveal all this time next week.