This novelty song is not as risqué as its title suggests, but that didn't prevent its being banned from BBC's Top Of The Pops program in 1971. Widely and erroneously reported to have been written by Jonathan King, it was in fact composed by bass player Keith Hancock; it is true though that King had a minor involvement with the band.
"Leap Up And Down (Wave Your Knickers In The Air)" was first played live on BBC TV, or TV anywhere, on The Noel Edmunds Show in 1985, which also featured footage of a protest against the ban outside the BBC. The independent media was not so prudish; a report in the London Times of August 25, 1971 said an advertisement for the record had been approved by Thames Television.
Suggestion credit: Alexander Baron - London, England, for above 2