If you wanna be nice about it or near a load of kids, children, think of the children!!!!!
You're not very good, You're not very good, You're not very, You're not very, You're not very good!
One of my favourites, catchy fanchant, good ringtone. (Ed: Better audio version of this classic added)
Hello, Hello We Are the Chelsea Boys Chant
Another classic and makes a good ringtone.