Their remake of
The Regents' hit "Barbara Ann" was recorded live during a break in a recording session, and was never meant to be released;
Brian Wilson later noted that "half the people in the room were singing while the other half were munching on potato chips." There are several points in the song where some of those singing can't remember the lyrics and just mumble something. Capitol Records released it as a single without the band's knowledge, which upset them greatly until they were told that it had reached #2 on the CashBox charts.