In what appears to be a fine example of TV tag teaming; this evening of comedy kicks off between the X Factor live coverage and then continues at 10.20pm. But what's it all in aid of? Well, it's Prince Charles' 60th birthday, innit, but don't let that put you off - he's after rounding up a very impressive line-up to keep all your ribs tickled - Rowan Atkinson, Joan Rivers, Bill Bailey and Robin Williams. Monty Python founder and comic genius, John Cleese, will act as Master of Ceremonies, overseeing what promises to be an exceptional evening's entertainment. Comedy legend Williams will be back with his first performance on a UK stage in over 25 years. That's not all; impersonator Jon Culshaw will make an appearance, as will stand-ups Michael McIntyre and Omid Djalili. There will also be a series of comedy sketches featuring guest appearances from Phillip Schofield, Fern Britton and Chris Tarrant.