In 1951 she signed a recording contract with Peacock Records and performed at the Apollo Theater in 1952. Also in 1952, while working with another Peacock artist Johnny Otis, she recorded "Hound Dog", the first record produced by its writers Jerry Leiber and Mike Stoller. The pair were present at the recording, with Leiber demonstrating the song in the vocal style they had envisioned; "We wanted her to growl it," Stoller said, which she did. Otis played drums, after the original drummer was unable to play an adequate part. The record sold more than half a million copies, and went to number one on the R&B chart, helping to bring in the dawn of rock 'n' roll. Although the record made Thornton a star, she saw little of the profits.