Andrew Lloyd Webber's Cats celebrates its 21st birthday in the West End in May 2002, and the buzz about how this milestone will be marked has already started. There's speculation too that the celebration might be one final blow-out before a Cats bow-out. The award-winning show claims the record for longest-running musical on both sides of the Atlantic, but there have been grumbles that it's beginning to look tired. With other long runners recently packing up shop - including Lloyd Webber's Starlight Express which skates out of the Apollo Victoria next month after 18 years - the prospect of a feline-free West End doesn't seem beyond the realms of possibility.