 "Mandrake Root" is a song by the globe's loudest band as listed in what book from 1975?
Deep Purple: Deep Purple are an English rock band formed in Hertford in 1968. Deep Purple:  They were listed in the 1975 "Guinness Book of World Records" as "the globe's loudest band" for a 1972 concert at London's Rainbow Theatre, and have sold over 100 million albums worldwide.
i don't know