Bulee "Slim" Gaillard, also known as McVouty, was an American jazz singer and songwriter who played piano, guitar, vibraphone, and tenor saxophone.

Leroy Eliot "Slam" Stewart was an American jazz double bass player, whose trademark style was his ability to bow the bass (arco) and simultaneously hum or sing an octave higher. He was a violinist before switching to bass at the age of 20.