Ronald Augustus Mack (July 11, 1940 – November 5, 1963)[1] was an American songwriter, singer and talent manager who wrote "He's So Fine", a number one chart hit in 1963 for the Chiffons and the apparent inspiration for George Harrison's "My Sweet Lord".
[2] Ronnie Mack (known to his friends as Rocco)[3] grew up in Harlem, New York City, and loved music from childhood, teaching himself to play piano.
By the mid-1950s he started writing songs, and also performed in a doo-wop vocal group, the Marquis, which unusually for the time featured a female lead singer, June Bateman (who later married musician Noble "Thin Man" Watts).
In late 1961, it was re-promoted and reissued more successfully in Philadelphia, and Rivers appeared as a solo act performing it on American Bandstand, but it failed to make the national charts.
"[1] The Chiffons re-recorded "He's So Fine" with members of the Tokens and with Carole King on piano, and it was released by Laurie Records in late 1962, reaching number one on both the Billboard Hot 100 and the R&B chart in March 1963.