Robert Frank "Rob" Grill (born November 30, 1943 in Los Angeles, California) is an American singer, songwriter and bass guitarist best known as lead singer of the highly successful (between 1967 and 1972) rock and roll band, The Grass Roots.

He launched a solo career in 1979, assisted on his solo album by several members of Fleetwood Mac. Responding to 60s nostalgia, Grill then reformed The Grass Roots (now billed "The Grass Roots Starring Rob Grill") and has toured the United States since the 1980s.

Rob is a native of Hollywood, California where he attended Hollywood High School. Soon after graduation, Rob began working at American Recording Studios with musician friends Cory Wells and John Kay (who later formed Three Dog Night and Steppenwolf, respectively). Convinced to start his own band, Rob and three others formed The Grass Roots. Teaming up with mega-hit producer Steve Barri (The Mamas & the Papas, Tommy Roe, Four Tops and Dusty Springfield), The Grass Roots went on to chart twenty nine singles, thirteen of which went gold followed by two gold albums and two platinum albums. Their 1991 CD, The Grass Roots Anthology on Rhino Records, remains a strong seller today.[1]

In 2006, former manager Marty Angelo published a book entitled, Once Life Matters: A New Beginning which has numerous stories about his life on the road with Rob Grill and the Grass Roots back in the early 1970s.

In 2008, The Grass Roots Starring Rob Grill released a live album chronicling their 14 top forty Billboard hits titled Live Gold.

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