Rosie and the Originals' "Angel Baby" (1960) is a classic doo wop ballad, beloved (and covered) by John Lennon. Lennon was a fan of the flipside of that record too, "Give Me Love," but only because it's wonderfully awful. From Jonathan Cott's book Days That I Remember: Spending Time with John Lennon & Yoko Ono:
"This is really one of the greatest strange records,” [Lennon] remarked. “It's all just out of beat, and everyone misses it. The A side was the hit, 'Angel Baby'— which is one of my favorite songs — and they knocked off the B side in ten minutes. I'm always talking Yoko's ear off, telling her about these songs, saying, 'Look, this is this! This is this... and this... and this!'"
(via r/ObscureMedia)
