Wow, so great to see somebody mention "Groovy Baby." One of my favorites too. You and Fiji Hill are far beyond me in R&B knowledge, I concede right off the bat, but I'm always up for learning. Some more good songs from 1963 included "Hey Girl" by Freddy Scott, "Monkey Time" by Major Lance, "Pride and Joy" by Marvin Gaye, and lots of Wall of Sound stuff -- "Da Doo Ron Ron" and "Be My Baby" among the big ones, but also "Wait 'Til My Bobby Gets Home" by Darlene Love. From late 63 I remember The Girlfriends doing "Jimmy Boy." Also a late white doo-wop effort I always had affection for, "Denise" by Randy and the Rainbows.
Oh yeah, one of my favorite rot-gut songs was from 63, "The Bounce" by The Olympics. It was a nice year for music, an interlude between Elvis and The Beatles that allowed some creative stuff to bubble up.
I also dig that disk, along with the their follow-up, "Do the Slauson Shuffle." The Slauson Shuffle, a dance craze named for Slauson Avenue in Los Angeles, probably never got far beyond the Southland, but it inspired a number of songs such as "Do the Slauson" by Round Robin. His follow-up, "Kick Your Little Foot, Sally Ann," also inspired by the dance, nosed nto the Billboard Hot 100 in early 1964 about the time the Beatles arrived.