In 1962 The Crystals(see in this blog) were know as Billy & The Essentials;Bill Carlucci(Lead),John Caulfield(2nd Tenor),Phil D'Antonio(Baritone),Peter Torres(Falsetto) and Michael Leniham(1st Tenor).
With the help of Johnny Madara the producer of Danny & The Juniors they have their first recording as Little Billy & The Essentials on the philly based label Landa Records (subsidiary of Jamie Records)_Steady Girl(written by a chinese Bill friend)/The Dance is Over(Originally by The Shirelles).
The next release was their biggest_Maybe You'll Be There. b/w_Over The Weekend. on the mother label Jamie Records.
Later they recorded
-Lonely Weekend/Young At Heart. Mercury Records-1963.
-Last Dance/Yes Sir, That's My Baby. Mercury Records-1963.
-Remember Me, Baby/The Actor. Cameo Records-1965.
-Babalu's Wedding Day/ My Way Of Saying. Smash Records-1966
-My Way Od Saying/Don't Cry(Sing Along With The Music/Baby, Go Away. Smash Records-1966.
-I Wrote A Song/Oh What A Feeling. SSS International-1967.
-Resolutions/You're So Fine. Unreleased sides released on Crystal Ball Records in 1981.
Also they recorded under the names of The Heatwaves, Gary Kay, The Panics or The Styles.(see all in this blog).