Music entrepreneur Michael Gudinski was involved with the first Sunbury festival—as well as managing several major acts that appeared—he operated a lucrative concession selling watermelon to festival-goers. British-owned record company EMI released a double-album of live performances from the 1972 festival. Gudinski's new record company, Mushroom Records, established later in 1972, became associated with Sunbury thanks to its inaugural release, a three-disc set of live recordings from the 1973 festival. Billy Thorpe & the Aztecs also released a live album of their performance that year on the independent Havoc Records label.