Nicholas George Gravenites (/ɡrævᵻˈnaɪtᵻs/; born October 2, 1938), with stage names like Nick "The Greek" Gravenites and Gravy, is a blues, rock and folk singer–songwriter, and is best known for his work with Janis Joplin, Mike Bloomfield and several influential bands and names of the generation springing from the 1960s and '70s.
His parents were from Palaiochori, Arcadia. According to author and pop music critic Joel Selvin, Gravenites is "the original San Francisco connection for the Chicago crowd." Gravenites is credited as a "musical handyman" helping such San Francisco bands as Quicksilver Messenger Service and Janis Joplin's first solo group, the Kosmic Blues Band. Nick wrote various songs for Joplin, including her Woodstock hit "Work Me, Lord" and the unfinished instrumental track "Buried Alive In The Blues". Gravenites also worked extensively with John Cipollina after producing the first Quicksilver Messenger Service album. He and Cipollina formed the Nick Gravenites–John Cipollina Band which toured throughout Europe.