Robert Rock (born June 29, 1959) is an American heavy metal singer who is best known as the longtime frontman of Impellitteri, a position he has held from 1987 to 1988, 1992 to 2000, and now from 2008 to the present day.

Driver would release a 5-song cassette-only EP in 1990 but broke up the following year when Rock got a call from Chris Impellitteri and decided to once again join his band.

As a result of that collaboration, Floyd asked Rock if he would provide vocals for a revamped lineup of the legendary US metal band Warrior.

Eventually, Rock would reform Driver with Roy Z and Reynold Carlson and release the Sons of Thunder album in 2008, which consisted of re-recordings of their 1990 EP along with other unreleased songs written at the time.

[6] Rock has also lent his voice to the Randy Rhoads tribute released in 2000 and to countless other projects through his career like Avantasia and Axel Rudi Pell.

[citation needed] with Timo Tolkki with Avantasia with Warrior with Axel Rudi Pell with Driver with Angelica with Joshua with Impellitteri with M.A.R.S.