ZZ Top is an American rock band formed in 1969 in Houston, Texas. The band consists of guitarist and lead vocalist Billy Gibbons, bassist and co-lead vocalist Dusty Hill, and drummer Frank Beard. ZZ Top is the only American rock band to have the same members for 30 or more years . The band and its members went through several reconfigurations throughout 1969, achieving their current form when Hill replaced bassist Billy Etheridge in February 1970, shortly before the band was signed to London Records.