But apparently they were very fond of The Sweet (Ballroom Blitz I think).
The story goes that a member or so of |The Sweet ended up at a Led Zep party. The Sweet record comes on and members of LZ went mental dancing to it. Said member of The Sweet thinks they're taking the piss. It gets played several times and same reaction. Member of Sweet discovers that LZ weren't taking the piss. They loved that record!