Hayley Gene Penner is a Canadian singer, songwriter and author based in Los Angeles. She is best known for the songs she has written for artists including The Chicks, Sabrina Claudio, Lennon Stella, Charlotte Lawrence and The Chainsmokers. As of 2018, Penner has been releasing music under her full name and in September 2020, she released her debut album, People You Follow, with a memoir of the same name.

Frederick Ralph Cornelius Penner is a Canadian children's entertainer and musician known for the song "The Cat Came Back" and his television series, Fred Penner's Place, which aired on CBC in Canada from 1985 to 1997 and in the United States on Nickelodeon from 1989 to 1992.