I'm aware that Phil Spector produced this legendary Righteous Brothers song, and I'm pretty sure he used "The Wrecking Crew" for studio musicians when this was cut in March of 1965. Most bassists are aware of a wrong note at 2:15 of the track (see video below for reference). Bassist hits a G instead of A. . .so who was it? The legendary Carol Kaye who could do no wrong? Whenever I hear this song on the radio I cringe every time that part comes around! Can't believe they didn't fix that back in the day. . .