Together with the Sex Pistols, The Clash were the first punk rockers in England. Unlike the Sex Pistols, however, they mixed their sound with reggae and disco sounds. The bandleader duo Joe Strummer and Mick Jones composed most of the hits of the formation. The third album "London Calling" was released in 1979 as a double LP and impressed with its broad musical spectrum ranging from pop and reggae to punk. Especially impressive is the title song, which is one of the key tracks of an entire musical era.