Rex Garvin (And The Mighty Cravers) were an American rhythm and blues (R&B) group active during the 1960s. Led by keyboardist and songwriter Rex Garvin, the band was known for its soulful sound and energetic performances. They are most recognized for their 1966 hit "Sock It To 'Em J.B.", a funk-infused tribute to James Bond. Despite not achieving widespread fame, the group's influence can be seen in the subsequent evolution of R&B and soul music.