M83 Songs: Oblivion (feat. Susanne Sundfør) - Midnight City
Machine Gun Kelly
MGK (Colson Baker)
Songs: No More Sad Songs (feat. Little Mix) - Bad Things (& Camila Cabello)
Macklemore Songs: These Days - Good Old Days (feat. Kesha) - Glorious (feat. Skylar Grey) - And We Danced (feat. Ziggy Stardust)
Macklemore & Ryan Lewis Songs: Can't Hold Us (feat. Ray Dalton) - Same Love (feat. Mary Lambert) - Downtown - Thrift Shop - White Walls (feat. Schoolboy Q & Hollis)
Madcon
Also known as Mad Conspiracy
Tshawe Baqwa - Kapricon & Yossef Wolde-Mariam

Songs: Beggin' - Don't Worry (feat. Ray Dalton) - Glow - Liar
Madison Cowboy Songs: Tequila (Line Dance Party) (feat. DJ Robbie & Fabby T)
Malo Songs: Suavecito
Maluma Songs: Felices los 4 - Vente pa' ca (feat. Ricky Martin) - Corazón (feat. Nego do Borel) - Medellín (& Madonna) - El Préstamo
Cheb Mami Songs: Desert Rose (& Sting) - Meli Meli (Que m'arrive-t-il ?) - Ma Ma (Dance Mix)
Man of La Mancha (musical)
The musical (1965)
Songs: The Impossible Dream (The Quest) - La quête (Jacques Brel)
Maroon 5
Adam Levine, James Valentine, Jesse Carmichael, Michael Madden, Matt Flynn & Ryan Dusick
Songs: Moves Like Jagger (feat. Christina Aguilera) - Three Little Birds - Girls Like You (feat. Cardi B) - This Love - Girls Like You
Marshmello
Songs: Wolves (feat. Selena Gomez) - Friends (feat. Anne-Marie) - Happier (feat. Bastille) - Here With Me (feat. Chvrches) - Silence (feat. Khalid)
Massive Attack Songs: Teardrop (feat. Elizabeth Fraser) - Live with Me (Terry Callier)
The Mavericks
Raul Malo, Robert Reynolds, Paul O'Rourke, Eddie Deakin, Mitchell Quinn, David Lee Holt, Nick O'Kane, Ben Peeler & Ashley Price
Songs: Dance the Night Away - Ride With Me - Swingin' - There Goes My Heart - Hey Good Lookin'
Edward Maya Songs: Stereo Love (feat. Vika Jigulina) - This Is My Life (feat. Vika Jigulina)
Maze Songs: Joy And Pain - Before I Let Go (feat. Frankie Beverly) - Happy Feelin's (feat. Frankie Beverly) - Golden Time Of Day (feat. Frankie Beverly)
Zayion McCall Songs: Juju on That Beat (TZ Anthem) (& Zay Hilfigerrr)
Jim McCann
Songs: Grace
China Anne McClain
Disney
Songs: Calling All The Monsters (From A.N.T. Farm) - Dynamite (From A.N.T. Farm)
Marilyn McCoo Songs: You Don't Have To Be A Star (in duet with Billy Davis Jr.)
Leah McFall Songs: I Will Survive (Live)
Maria Mckee
Songs: Show Me Heaven (Days of Thunder)
Gerard McMann
Songs: Cry Little Sister (The Lost Boys)
Meduza Songs: Piece of Your Heart (feat. Goodboys)
Megadeth Songs: Symphony Of Destruction - Angry Again - Moto Psycho (Alternative Outro)
Melanie C
Melanie Chisholm Also known as Mel C
See also: Spice Girls

Songs: When You're Gone (in duet with Bryan Adams) - If That Were Me - First Day of My Life - I Turn To You - Yeh Yeh Yeh
Metallica
James Hetfield, Lars Ulrich, Kirk Hammett & Robert Trujillo
Songs: Enter Sandman - Nothing Else Matters - Whiskey In The Jar - Master of Puppets - Sad But True
Migos Songs: Bad and Boujee (feat. Lil Uzi Vert) - MotorSport (feat. Nicki Minaj & Cardi B) - T-Shirt
John Miles
Songs: Music (Was My First Love) - Try A Little Tenderness (live Wembley) (in duet with Tina Turner)
Christina Milian Songs: Dip It Low - Call Me Beep Me (From the TV series Kim Possible) - AM to PM - Whatever U Want (feat. Joe Budden) - When You Look At Me
Military Wives Choir
Songs: Sing (& Gary Barlow & The Commonwealth Band) - Wherever You Are (X Factor)
Glenn Miller
Glenn Miller And His Orchestra
Songs: Chattanooga Choo Choo - In The Mood - Moonlight Serenade
Miss Montreal Songs: Hoe (& Nielson) - Just A Flirt - Ik zoek alleen mezelf (feat. Paskal Jakobsen)
Miss Saigon
Musicals & Broadway (1990)
Claude-Michel Schoenberg & Alain Boublil

Songs: Bui Doi - I Still Believe - The Last Night of the World - The Movie In My Mind - Why, God, Why?
MK Songs: 17 - Always (Route 94 Remix) (feat. Alana)
Janelle Monáe
Songs: We Are Young (& Fun) - Make Me Feel - Tightrope (feat. Big Boi) - What Is Love? (From Rio 2 movie soundtrack)
Monsters, Inc. Songs: If I Didn't Have You - Si je ne t'avais pas (Eric Métayer & Jacques Frantz)
Morecambe and Wise
Eric Morecambe & Ernie Wise
Songs: Bring Me Sunshine - Positive Thinking
Motörhead
Lemmy Kilmister, Phil Campbell & Mikkey Dee
Songs: Ace Of Spades
Motown The Musical
The musical (2013) Broadway Cast
Songs: Get Ready / Dancing in the Street
Mousse T.
Songs: Sex Bomb (& Tom Jones) - Is It 'Cos I'm Cool? (feat. Emma Lanford) - Let's Go To Bed (& No Angels)
Wolfgang Amadeus Mozart Songs: Voi che sapete (le Mariage de Figaro) - Ave verum corpus - Non so più cosa son, cosa faccio (Le nozze di Figaro)
Mundy Songs: Galway Girl (feat. Sharon Shannon) - July
Muse
Matthew Bellamy, Dominic Howard & Christopher Wolstenholme
Songs: Pressure - Starlight - Thought Contagion - Time is Running Out - Can't Take My Eyes Off You
Music and Lyrics Songs: Way Back Into Love (Hugh Grant & Drew Barrymore)