- J -- Jacob Christoffersen
- Jacob Christoffersen Trio -- James Monks
- James Monro -- Jarrod Turner
- Jarrys Fimbo -- J.D. Natasha
- J.D. Nicholas -- Jen Gould
- Jen Gould -- Jessica Johansson
- Jessica Johnson -- Jimmy Keith
- Jimmy Keith and His Shocky Horrors -- Joe Gutta
- Joe Guy -- John Daniels
- John Dankworth -- Johnavon 'BoPeep' Sauls
- John&Bernadette Moore -- Joni James
- Joni Janak -- Joshua168
- Joshuagabriel -- Julia Stein
- Julia Steiner -- József Balogh