First recorded by The Drifters (R&B #10 1956).
Other hit versions by Dion (US #2/R&B #5 1963), Billy “Crash” Craddock (US #33/MOR #23/C&W #1 1974).
Also recorded by The Beach Boys (1965, released 1993), Donald Fagen (1982).
From the wiki: “‘Ruby Baby’ was written by the hit songwriting team of Jerry Leiber and Mike Stoller (‘Hound Dog‘, ‘On Broadway‘). It was first recorded by the Drifters, who scored an R&B hit with the song in 1956. Dion covered ‘Ruby Baby’ in 1963, scoring a Top-5 hit. In 1974, Billy ‘Crash’ Craddock topped the US Country chart with his cover version.
“The Beach Boys recorded ‘Ruby Baby’ during sessions for their 1965 album Beach Boys’ Party!, but the recording remained unreleased until the band’s 1993 box set Good Vibrations: Thirty Years of The Beach Boys. Steely Dan’s Donald Fagen covered ‘Ruby Baby’ for his 1982 solo album, Nightfly.”