Minnie Riperton

Minnie Julia Riperton (November 8, 1947 – July 12, 1979) was an American singer-songwriter best known for her 1975 single "Lovin' You". She was married to songwriter and music producer Richard Rudolph from 1972 until her death in the summer of 1979. They had two children: music engineer Marc Rudolph and actress/comedienne Maya Rudolph.

source: Wikipedia