70s fad music (5)
I believe the answer is:
disco
(Other definitions for disco that I've seen before include "Thumping music" , "Musical entertainment" , "Discotheque (abbrev.)" , "Dance party" , "Style of pop music" .)
I believe the answer is:
disco
(Other definitions for disco that I've seen before include "Thumping music" , "Musical entertainment" , "Discotheque (abbrev.)" , "Dance party" , "Style of pop music" .)