First recorded by The Laurels (1958).
Hit version by Jan & Dean (US #10/R&B #28 1959).
From the wiki: “‘Baby Talk’ was written by Melvin Schwartz, and was first recorded and released by Schwartz’s group, The Laurels, from Crown Heights, Brooklyn, NYC, in 1958. Released on the tiny Spring Records label, promotion and distribution were limited and the recording had no chart impact … but it did not go unnoticed.
“Fast forward one year. A chance encounter backstage would provide ‘firsts’ for two different, but professionally related, pairs of people: Lou Adler and Herb Alpert (their first co-production); Jan Berry and Dean Torrance (their first Top-10 single).