Just changed it to World Hold on - Bob Sinclair but was I just Cant get Enough - Herd & Fitz for ages before that.
I save the funny ones for my text alerts, I alternate between "You got a text, you dirty slag" in a Kat Slater style cocky voice - very amusing at times and a snippit from the old computer game 'Worms' that says 'Incoming.............woooooooooosh and giggles' in a funny worm-esk style voice.