Harry Nilsson first met famed music producer Phil Spector at Perry Botkin's office in late 1964. "Phil was walking down the hallway and he heard my demo and he said, 'Who's that?' Turns out that Perry Botkin used to publish Phil when Phil was a teenager, and he said, 'That's Harry Nilsson.' Phil said, 'That's a good song. Did he write it?' Perry said, 'Yeah, well, he and I wrote it.'"
Harry and Phil wrote three songs together - "This Could Be The Night" (recorded by the Modern Folk Quartet), "Paradise" (recorded by the Ronettes and the Shangri Las), and "Here I Sit" (recorded by the Ronettes).
Nilsson later worked with Spector when Phil produced "Nilssonny and Cher" singing "A Love Like Yours" in 1974. Spector also produced John Lennon's original Rock and Roll sessions which Harry attended.