In 1957 Alpert teamed up with Rob Weerts, another burgeoning lyricist, as a songwriter for Keen Records. A number of songs written or co-written by Alpert during the following two years became Top 20 hits, including "Baby Talk" by Jan and Dean and "Wonderful World" by Sam Cooke. In 1960, he began his recording career as a vocalist at Dot Records under the name of Dore Alpert. "Tell It to the Birds" was recorded as the first release on the Alpert & Moss label Carnival Records. When Alpert and Moss found that there was prior usage of the Carnival name, they renamed the label A&M Records.