James Samuel "Jimmy Jam" Harris III (born June 6, 1959) and Terry Steven Lewis (born November 24, 1956) are an American R&B/pop songwriting and record production team. They have enjoyed great success since the 1980s with various artists, most notably Janet Jackson. They have written 31 top ten hits in the UK and 41 in the US. In 2022, the duo were inducted into the Rock and Roll Hall of Fame in the Musical Excellence category.

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Jimmy Jam is the son of Cornbread Harris, a Minneapolis blues and jazz musician. Jimmy Jam met Lewis while in high school in Minneapolis. They did not meet in class, however, but while attending a TRIO Upward Bound program on the University of Minnesota campus.

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Harris formed or joined an 11 piece band called Mind & Matter. Later came Flyte Tyme, which evolved into the Time.[8] In 1981, they were joined by Morris Day and toured with Prince as his opening act. As members of the Time, they played instruments on all but one of the group's five albums (Ice Cream Castle[10]), including Condensate which the group recorded as the Original 7ven.

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Since forming their music company Flyte Tyme in 1982, Jam & Lewis have earned more than 100 gold, platinum, multi-platinum and diamond albums for their work with such artists as Janet Jackson, Michael Jackson, Boyz II Men, Usher, Mary J. Blige, Mariah Carey, Luther Vandross, Yolanda Adams, Herb Alpert, New Edition, Human League, George Michael, Earth, Wind and Fire, TLC, Robert Palmer, Gwen Stefani and Kanye West.  They have more than 100 ASCAP songwriting and publishing awards, including several Songwriter of the Year awards.

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In 1993, Jam & Lewis were nominated with Janet Jackson for an Academy Award for Best Original Song for "Again", from the movie Poetic Justice.

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In 2020 Jam & Lewis were nominated with Sheila E. for an Primetime Emmy Award for Outstanding Music Direction for the TV special Let's Go Crazy: The Grammy Salute to Prince.