Task: Question Answering
Input (English): passage: ZZ Top /ˈziːziːtɒp/ is an American rock band formed in 1969 in Houston, Texas. The band has, since 1970, consisted of bassist and vocalist Dusty Hill, guitarist and lead vocalist Billy Gibbons (the band's leader, main lyricist and musical arranger), and drummer Frank Beard. ``As genuine roots musicians, they have few peers'', according to former musician, critic and collector Michael ``Cub'' Koda. ``Gibbons is one of America's finest blues guitarists working in the arena rock idiom (...) while Hill and Beard provide the ultimate rhythm section support.''
 question: are all the members of zz top still alive?
Output (English): Yes