We went into the studio and cut a song called "This Could Be the Night," a Harry Nilsson tune, and it had the whole Spector 'wall of sound.' Part of the sound was to have lots of guitars, lots of drums, lots of bass - not just one of everything. So anyway, we recorded this song, and Brian Wilson came down when it was finished. He'd sit in the control booth wearing pajamas, robe, and slippers, listening to the song over and over and over again. We didn't talk much, but we loved having him there, cuz we loved the Beach Boys.

-- Henry Diltz [1]

 

"This Could be the Night" by the Modern Folk Quartet

 

While Phil Spector used the song in the 1966 concert film The Big TNT Show, it was never commercially available until 1976 when it was included in the Phil Spector collection Back to Mono.