J Boog
Also known as Jerry Afemata
Songs: Let's Do It Again (Nice to Know Ya) - No Other Love (& Common Kings & Fiji)
J2 Songs: Hit Me Baby One More Time (& Blu Holliday)
Ivan Jack
Songs: Stand by Me (remix) (45 Stars)
The Jackson 5
Also known as The Jackson Five, The Jackson 5ive, J5, The Jacksons
See also: Michael Jackson

Songs: Blame It on the Boogie - ABC - I Want You Back - Who's Lovin' You - I'll Be There
Max Jackson
Songs: Summer of ‘69 (Little More Country Sessions) - Dancing Queen (Little More Country Sessions) - TiKToK (Little More Country Sessions) - Hey Baby (Little More Country Sessions) - I Wanna Dance With Somebody (Little More Country)
Ruth Jacott
Songs: Hartslag - Rad van Fortuin (Ik hou zoveel van jou) - Leun op mij - Blijf bij mij - Vrede
Jacquees Songs: B.E.D.
Jain Songs: Makeba - Come - Alright - Oh Man - Dream
Cornelia Jakobs Songs: Hold Me Closer (Eurovision Sweden)
Janie Songs: Mon idole
Jawny Songs: Honeypie
Jay and The Americans
Also known as John Jay Traynor, Howie Kane, Kenny Vance, Sandy Deanne, Jay Black & Marty Sanders
Songs: Walkin' in the Rain - Cara Mia - This Magic Moment - Come a Little Bit Closer - Only in America
Jazzy Songs: Somedays (& Sonny Fodera & D.O.D) - Giving Me
Jekyll & Hyde (musical)
Musicals & Broadway - The Strange Case of Dr Jekyll and Mr Hyde (Louis Stevenson)
Songs: This Is the Moment - Someone Like You - Confrontation (Robert Cuccioli) - Bring on the Men - Dangerous Game
Jem Songs: 24 - It's Amazing
Jendrik Songs: I Don't Feel Hate (Eurovision Germany)
Lyfe Jennings Songs: Must Be Nice - S.E.X. (& LaLa Brown) - Freeze (& LL Cool J)
Jeremih
Jeremih Felton
Songs: Planez (& J. Cole) - Oui - Birthday Sex - Down On Me (& 50 Cent) - Somebody (& Natalie La Rose)
Jessy Songs: Dancing in the Dark (& Micky Modelle)
Jethro Tull
Ian Anderson, Martin Barre, David Goodier, John O'Hara & Doane Perry
Songs: Locomotive Breath - Mother Goose - Wond'ring Aloud - Aqualung - Skating Away (On the Thin Ice of the New Day)
JID
Songs: 151 Rum - Fuel (& Eminem) - Enemy - Dope
Jigsaw Songs: Sky High
Jinjer Songs: Pisces
The Jive Aces Songs: White Cliffs of Dover - Bring Me Sunshine (& Toni Elizabeth Prima)
JJ Songs: Wasted Love (Eurovision Austria)
Yung Joc Songs: It's Goin' Down - Show Stopper (& Danity Kane) - I Know You See It (& Brandy "Ms. B." Hambrick)
Jogga Songs: Skeu skeu (& Wilsko & 7ia)
John Cafferty & The Beaver Brown Band
See also: Eddie and the Cruisers
Songs: Garden of Eden (Eddie and the Cruisers II) - NYC Song (Eddie and the Cruisers II) - Tender Years (Eddie and the Cruisers) - Just a Matter of Time (Eddie and the Cruisers II) - Runnin' Through The Fire (Eddie and the Cruisers)
Joji
Also known as Filthy Frank, Pink Guy & George Kusunoki Mille
Songs: Glimpse of Us - Slow Dancing in the Dark - Daylight (& Diplo) - Die for You - Run
Nick Jonas
Nick Jonas & The Administration
Songs: Introducing Me (From Camp Rock musical) - Jealous - Chains - This Is Heaven - Haven't Met You Yet (Smash)
Jonasu Songs: Black Magic (& Rani)
Michael Joncas
Also known as Jan Michael Joncas
Songs: On Eagle's Wings
Coco Jones
Also known as Courtney Jones
Songs: She Got It (& Teddy Swims & GloRilla) - Taste - Here We Go (Uh Oh) - ICU - Tummy Hurts (remix) (& Reneé Rapp)
Joost
Also known as Joost Klein
Songs: Europapa (Eurovision Netherlands) - Luchtballon
Jose De Rico Songs: Rayos de sol (& Henry Mendez)
José José
Also known as José Rómulo Sosa Ortiz
Songs: Si me dejas ahora - El triste - Lo que no fue no será - Lo pasado, pasado - Una mañana
Josman Songs: Intro
Journey
Neal Schon, Ross Valory, Jonathan Cain, Deen Castronovo & Arnel Pineda
Songs: Don't Stop Believin' (Small Town Girl) - Faithfully - Separate Ways (Worlds Apart) - Open Arms - Who's Crying Now
JT
Also known as Jatavia Shakara Johnson
See also: City Girls

Songs: Alter Ego (& Doechii) - Okay
Jul
Songs: Mon bijou - Avant la douane - Wesh alors - Ibiza (& Jimmy Sax) - Bande organisée (& SCH, Kofs, Naps, Soso Maness, Elams, Houari & Solda)
Julie and the Phantoms
Madison Reyes, Charlie Gillespie, Cheyenne Jackson, Jadah Marie & Savannah Lee May
Songs: Unsaid Emily (Charlie Gillespie) - Perfect Harmony - Stand Tall - Edge of Great - Bright
Jungeli Songs: Petit génie (& Imen Es, Alonzo, Abou Debeing & Lossa) - A tes côtés (& Lenie)
Juvenile
Songs: Back That Azz Up (& Lil Wayne & Mannie Fresh) - Slow Motion (& Soulja Slim)