This Web site recently carried an interview with David Roberts, who has been involved with many pop projects. His latest is Rock Atlas, a guide to essential events in rock history.
This includes Sunday, May 5, 1974, when Elton, wearing a hornet costume, performed a benefit concert for Watford Football Club. Nazareth was the opening act, and Rod Stewart later joined Elton onstage.
A couple of photos appear in Rock Atlas pertaining to the show, including the one below. It depicts a specially adapted Watford FC badge which adorned the souvenir programme.
Other acts who are discussed in the book include Lonnie Donegan, the Beatles, the Sex Pistols, and Lady Gaga.