Ronald Douglas Montrose (November 29, 1947 – March 3, 2012) was an American rock guitarist, who led the bands Montrose (1973-77 & 1987) and Gamma (1979-83 & 2000) and also performed and did session work with a variety of musicians, including Van Morrison (1971–72), Herbie Hancock (1971), Beaver & Krause (1971), Boz Scaggs (1971), Edgar Winter (1972 & 1996), Gary Wright (1975), The Beau Brummels (1975), Dan Hartman (1976), Tony Williams (1978), The Neville Brothers (1987), Marc Bonilla (1991 & 1993), Sammy Hagar (1997), and Johnny Winter. The first Montrose album was often cited as "America's answer to Led Zeppelin" and Ronnie Montrose was often referred to as one of the most influential guitarists in American hard rock.