One of the great soul singers, Gladys Knight didn't hit her commercial stride until she moved to Motown in 1966. Steeped in the gospel tradition, like so many soul singers, Knight and backing group the Pips developed into one of Motown's most dependable acts, although they never quite scaled the commercial or artistic heights of fellow stars on the label like the Supremes, Marvin Gaye, and the Temptations. With Norman Whitfield providing the production and much of the songwriting, the Pips fit into the mainstream of Motown's machine well, scoring big hits with some rabble-rousers (like "Friendship Train" and the original version of "I Heard It Through the Grapevine"), mainstream mid-tempo soul ("It Should Have Been Me" and "The End of Our Road, ") and smooth ballads like "If I Were Your Woman." In 1973, Knight had her biggest Motown hit with "Neither One of Us," which made number two; shortly afterwards, she and the Pips left Motown for Buddah. The group were briefly superstars in 1973-74, reeling off the smashes "Midnight Train to Georgia" (their only number one), "I've Got to Use My Imagination," and "Best Thing That Ever Happened to Me." This ranked as some of their best material, but Knight soon moved toward an easy listening, adult contemporary direction, one that she's maintained to this day.