Patti LaBelle performs "If You Don't Know Me By Now" at the Rock and Roll Hall of Fame Induction Ceremony in New York, Monday, March 10, 2008. The song, recorded by Harold Melvin & The Blue Notes, was written by inductees Gamble & Huff. They won a best R&B Grammy for the song in 1989 for the remake by British band Simply Red.
(Photo: AP Photo/Jason DeCrow)
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