J Boog Songs: Let's Do It Again (Nice to Know Ya) - No Other Love (& Common Kings & Fiji)
Jesse James Dupree, Jeff Worley, Chris Worley, Roman Glick
Songs: Down on Me - Dirty Little Mind - She Loves My Cock
Ruth Jacott
Songs: Blijf bij mij - Leun op mij - Vrede - Rad van Fortuin (Ik hou zoveel van jou) - Ik ga door (& Miker G.)
Cornelia Jakobs Songs: Hold Me Closer (Eurovision Sweden)
Janie Songs: Mon idole
Jannes Songs: Laat me
Floor Jansen Songs: Shallow (Beste Zangers 2019) - Let It Go - Euphoria - Fire
Jayesslee Songs: Gangnam Style (강남 스타일) (Acoustic version)
Songs: Highway to Hell (& Tom Gaebel)
Jazzy Songs: Giving Me
Jeck Songs: Défaite
Jedward Songs: Under Pressure - Lipstick (Eurovision 2011 Ireland)
Jekyll & Hyde (musical)
Musicals & Broadway - The Strange Case of Dr Jekyll and Mr Hyde (Louis Stevenson)
Songs: Bring on the Men - This Is the Moment - Good 'N' Evil - Someone Like You - A New Life
Jem Songs: 24 - It's Amazing
Lyfe Jennings Songs: S.E.X. (& LaLa Brown) - Freeze (& LL Cool J) - Must Be Nice
Jessy Songs: Dancing in the Dark (& Micky Modelle)
Jethro Tull
Ian Anderson, Martin Barre, David Goodier, John O'Hara & Doane Perry
Songs: Locomotive Breath - Hymn 43 - Aqualung - Songs from the Wood - Thick As a Brick (Edit No. 1) (Radio Edit)
Jigsaw Songs: Sky High
Songs: Pisces
The Jive Aces Songs: White Cliffs of Dover - Bring Me Sunshine (& Toni Elizabeth Prima)
Kari Jobe
Also known as Kari Brooke Jobe
Songs: The Blessing (& Cody Carnes & Elevation Worship) - Revelation Song
Also known as Filthy Frank, Pink Guy & George Kusunoki Mille
Songs: Slow Dancing in the Dark - Glimpse of Us - Sanctuary - Die for You - Run
Nick Jonas
Nick Jonas & The Administration
Songs: Jealous - Bacon (& Ty Dolla Sign) - Introducing Me (From Camp Rock musical) - Joy to the World (A Christmas Prayer) - Chains
Jonasu Songs: Black Magic (& Rani)
Coco Jones
Also known as Courtney Jones
Songs: ICU
Camélia Jordana
Nouvelle Star 2009
Songs: What a Wonderful World (& André Manoukian) - Non non non (Ecouter Barbara) - Facile - Où je vais (& Vitaa & Amel Bent) - Silence
José José
Also known as José Rómulo Sosa Ortiz
Songs: Lo pasado, pasado - Amnesia - 40 y 20 - El triste - Lo que no fue no será
Neal Schon, Ross Valory, Jonathan Cain, Deen Castronovo & Arnel Pineda
Songs: Don't Stop Believin' (Small Town Girl) - Separate Ways (Worlds Apart) - Open Arms - Lovin', Touchin', Squeezin' - Lights
Songs: Bande organisée (& SCH, Kofs, Naps, Soso Maness, Elams, Houari & Solda) - Moulaga (& Heuss l'Enfoiré) - On m'appelle l'ovni - J'ai tout su - J'oublie tout
Julie and the Phantoms
Madison Reyes, Charlie Gillespie, Cheyenne Jackson, Jadah Marie & Savannah Lee May
Songs: Perfect Harmony - The Other Side of Hollywood - Bright - Unsaid Emily (Charlie Gillespie) - Stand Tall
Jungkook (정국)
Also known as Jeon Jeong-guk
See also: BTS (방탄소년단)

Songs: Seven (& Latto) - Dreamers - Left Right Left (& Charlie Puth) - Stay Alive
Juvenile Songs: Back That Azz Up (& Lil Wayne & Mannie Fresh) - Slow Motion (& Soulja Slim)