Marvin on Australasian pop and rock music of the 1960s and 1970s is underrated. Australian instrumental bands played at dance venues in capital cities and regional towns. Like Australian jazz groups, these rock 'n' roll musicians became accomplished players. Dance patrons moved as couples to traditional rhythms, and bands played a wide variety of musical styles. One of the popular dance crazes of the era was "The Stomp". According to Digger Revell of The Denvermen "it was like what the Red Indians do when they're dancing around the teepee. I don't know where it came from but everyone was doing it at the time". 1964–1969: "Second wave" Beat boom: pop, rock, and garage During the second wave of Australian rock or "beat boom" from 1964 to 1969, there were hundreds of bands active, both live and in recording studios. The Beatles, and other British Invasion acts, had a massive impact on the local rock music scene. These bands toured to wild receptions from the mid-1960s. When The Beatles' June 1964 Australian tour arrived in Adelaide, an estimated 300,000 people—about one-third of the city's population at that time—turned out to see their motorcade from the airport to the city. The tours and recordings by British beat groups revitalised the pop and rock genres by inspiring scores of new and established groups, which quickly developed a vibrant and distinctive local inflection. Bee Gees and The Easybeats are the best-known pop rock acts from this era which also gained success outside the country. Both groups consisted of members who had migrated from the UK and, in the case of the latter, from continental Europe. Bee Gees had formed in 1960 by the trio of singing Gibb brothers, who had migrated from UK two years earlier, created "impeccable three-part harmonies" in a pop and R&B style. In 1963 they signed with Leedon Records which issued their early singles from that year and their debut album, The Bee Gees Sing and Play 14 Barry Gibb Songs, in November 1965. Their most successful Australian-based single, "Spicks and Specks", was issued in September 1966, which reached No. 4 on the Go-Set Australian National Top 40. By January of the next year they had returned to UK where they continued a very successful career both there and later, in the US. They also continued to chart well in Australia throughout the decade and beyond. Their first number-one hit