Kool & the Gang is an American band formed in Jersey City, New Jersey, in 1964 by brothers Robert "Kool" Bell and Ronald Bell, with Dennis "D.T." Thomas, Robert "Spike" Mickens, Charles Smith, George Brown, and Ricky West. They have undergone numerous changes in personnel and have explored many musical styles throughout their history, including jazz, soul, funk, rock, and pop music. After settling on their name following several changes, the group signed to De-Lite Records and released their debut album, Kool and the Gang.
The band's first taste of success came with the release of their fourth album Wild and Peaceful, which contained the US top-ten singles "Jungle Boogie" and "Hollywood Swinging". Kool & the Gang subsequently entered a period of decline before they reached a second commercial peak between 1979 and 1986 following their partnership with Brazilian musician/producer Eumir Deodato and the addition of singer James "J.T." Taylor to the line-up. Their most successful albums of this period include Ladies' Night, Celebrate!, and Emergency, their highest selling album with two million copies sold in the US.