"Didn't We" is a song recorded by Irish singer and actor Richard Harris for his debut studio album, A Tramp Shining (1968). It was written and produced by Jimmy Webb and originally served as the B-side to Harris' 1968 single "MacArthur Park". "Didn't We" was then distributed as the record's single by Dunhill Records, also in 1968. A traditional pop song, Harris sings about his life in the past. Commercially, it charted at lower positions of both the United States and Canada, and in the higher ranks of their Adult Contemporary component charts. Harris featured "Didn't We" on several of his greatest hits albums, including The Richard Harris Collection: His Greatest Performances from 1973. That same year, the song was reissued as a promotional single paired alongside his 1971 single "My Boy".

American vocalist Barbra Streisand recorded a version of "Didn't We" in 1972 for her second live album, Live Concert at the Forum. It was originally performed at a concert benefitting George McGovern's unsuccessful 1972 presidential campaign. Streisand's monologue before and after the performance consisted of her acting as if she had taken marijuana. Her version peaked at number 82 in the United States, and also entered the Adult Contemporary charts in both the aforementioned country and Canada. She has since included an earlier version of "Didn't We" on her 2012 compilation album, Release Me. Other artists like Matt Monro and Frank Sinatra also recorded renditions of "Didn't We".

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