Question: What year did Michelle Phillips, co-founder of the Mama's and the Papa's, release a song which became #89 in "Rolling Stone"'s list of the 500 Greatest Songs of All Time?
Sentence (from "California Dreamin'"): However, the best known version is by The Mamas & the Papas, who sang backup on the original version and released as a single in 1965.
Relevant evidence: Yes