A sturdy rock trio from Texas, ZZ Top specialized in down-and-dirty blues during the '70s, then scored colorful MTV hits during the 1980s. Formed in Houston in 1970 by Billy Gibbons (guitar), Dusty Hill (bass), and Frank Beard (drums), the trio came from a pair of rival bands the Moving Sidewalks (Gibbons) and American Blues (Hill and Beard). Their first two albums reflected the strong blues roots and Texas humor of the band. Their third album, Tres Hombres, gained them national attention with the hit "La Grange," a signature riff tune to this day, based on John Lee Hooker's "...