ScHoolboy Q
Also known as Quincy Matthew Hanley
Songs: Collard Greens (& Kendrick Lamar) - Am I Wrong (& Anderson .Paak) - White Walls (& Macklemore & Ryan Lewis & Hollis) - 2 On (& Tinashe)

Anthony Q.
Songs: Try Loving Me

Quad City DJ's
Songs: Space Jam - C'mon N' Ride It (The Train)

Suzi Quatro
Susan Kay Quatrocchio
Songs: Stumblin' In (& Chris Norman) - She's in Love With You - If You Can't Give Me Love - Devil Gate Drive - Can The Can

Quavo
Songs: Strip That Down (& Liam Payne) - Congratulations (& Post Malone) - I'm the One (& Justin Bieber, DJ Khaled, Chance the Rapper & Lil Wayne) - Tough (& Lana Del Rey) - Know No Better (& Camila Cabello, Travis Scott & Major Lazer)

Queen
Freddie Mercury, Brian May, Roger Taylor & John Deacon

See also: We Will Rock You (musical)
Songs: Don't Stop Me Now - Bohemian Rhapsody - We Are The Champions - We Will Rock You - The Show Must Go On

Queen Latifah
Songs: I Know Where I've Been (Hairspray (2007 film)) - As Time Goes By (& Rod Stewart) - When You're Good to Mama (Chicago (film)) - I Wanna Be Down (The Human Rhythm Hip Hop Remix) (& MC Lyte, Brandy & Yo-Yo) - Come So Far (Got So Far To Go) (From Hairspray (2007 film) movie soundtrack)

Queen of the Damned
Songs: Slept So Long (Jay Gordon) - Forsaken (David Draiman)

Queens of the Stone Age
Josh Homme, Troy Van Leeuwen, Joey Castillo, Dean Fertita & Michael Shuman
See also: Mark Lanegan
Songs: No One Knows - The Lost Art of Keeping a Secret - You Think I Ain't Worth a Dollar, but I Feel Like a Millionaire - Make It wit Chu - Little Sister

Queensrÿche
Songs: Silent Lucidity - I Don't Believe in Love - Take Hold of the Flame - Jet City Woman - Eyes of a Stranger

Quiet Riot
Songs: Cum on Feel the Noize - Metal Health (Bang Your Head) - Mama Weer All Crazee Now

Freddy Quinn
Songs: Heimweh (Dort wo die Blumen blüh'n) - Die gitarre und das meer - Nimm uns mit, Kapitän, auf die Reise - La Paloma - Junge, Komm Bald Wieder