William Frederick Gibbons is an American rock musician who is the guitarist and primary vocalist of ZZ Top. He began his career in the Moving Sidewalks, who recorded Flash and opened four dates for the Jimi Hendrix Experience. Gibbons formed ZZ Top in late 1969 and released ZZ Top’s First Album in early 1971.

Is it a real ZZ Top in Bones?

As an actor, Billy Gibbons of ZZ Top rocks. So says Hart Hanson, executive producer of the Fox crime drama “Bones,” and he should know: Hanson created a role for the iconic rocker to play four years ago and he keeps bringing him back.

Gibbons returns in the season finale at 8 p.m. Thursday as the father of Angela, a member of the show’s quirky crime-solving team. Angela, played by actress Michaela Conlin, is an artist and a free spirit.

Billy is a good actor,” the producer says. “When the camera is not going, he looks at Michaela, who is an incredibly beautiful woman, the way that a rock star would look at an incredibly beautiful woman.