Gayla Peevey Henderson is a former singer and child star from Ponca City, Oklahoma. She is best known for her recording, under her maiden name Gayla Peevey, of I Want a Hippopotamus for Christmas. Peevey recorded the novelty song when she was 10 years old.
In 1959, she had a minor hit with the song Robot Man, recorded under the name Jamie Horton. The song was covered by Connie Francis.