M83 Songs: Oblivion (feat. Susanne Sundfør) - Midnight City
Macklemore Songs: These Days - And We Danced (feat. Ziggy Stardust) - Glorious (feat. Skylar Grey) - Good Old Days (feat. Kesha)
Macklemore & Ryan Lewis Songs: Thrift Shop - Can't Hold Us (feat. Ray Dalton) - Same Love (feat. Mary Lambert) - Downtown - White Walls (feat. Schoolboy Q & Hollis)
Madcon Songs: Beggin' - Don't Worry (feat. Ray Dalton) - Glow - Liar
Madison Cowboy Songs: Tequila (Line Dance Party) (feat. DJ Robbie & Fabby T)
Maejor Songs: I Love You (feat. Greeicy) - Lolly (feat. Justin Bieber & Juicy J)
Major Lazer Songs: Lean On (feat. & DJ Snake) - Know No Better (feat. Camila Cabello, Travis Scott & Quavo) - Let Me Live (& Rudimental, Anne-Marie & Mr Eazi) - Que calor (feat. J Balvin & El Alfa) - Light It Up (Remix) (feat. Fuse ODG & Nyla)
Lee Majors Songs: The Unknown Stuntman (The Fall Guy)
Cheb Mami Songs: Desert Rose (& Sting) - Meli Meli (Que m'arrive-t-il ?) - Ma Ma (Dance Mix)
Manic Street Preachers
James Dean Bradfield, Nicky Wire, Sean Moore & Richey Edwards
Songs: A Design for Life - Your Love Alone Is Not Enough (feat. Nina Persson) - If You Tolerate This Your Children Will Be Next - Autumn Song - Ocean Spray
Mann Songs: Buzzin' (feat. 50 Cent)
Maroon 5
Adam Levine, James Valentine, Jesse Carmichael, Michael Madden, Matt Flynn & Ryan Dusick
Songs: Memories - She Will Be Loved - Moves Like Jagger (feat. Christina Aguilera) - Girls Like You - This Love
Marshmello
Songs: Happier (feat. Bastille) - Friends (feat. Anne-Marie) - Be Kind (& Halsey) - Silence (feat. Khalid) - Wolves (feat. Selena Gomez)
Elvis Martínez Songs: Así fue (Bachata)
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: Loving You - Don't Be Cruel - Blame it on Your Heart - Here Comes My Baby - Blue Bayou (feat. Raul Malo)
MAX Songs: Lights Down Low (feat. Gnash) - Love Me Less (feat. Quinn XCII)
Edward Maya Songs: Stereo Love (feat. Vika Jigulina) - This Is My Life (feat. Vika Jigulina)
Maze Songs: Before I Let Go (feat. Frankie Beverly) - Golden Time Of Day (feat. Frankie Beverly) - Happy Feelin's (feat. Frankie Beverly) - Joy And Pain
Jim McCann Songs: Grace
China Anne McClain Songs: Dynamite (From A.N.T. Farm) - Calling All The Monsters (From A.N.T. Farm)
Marilyn McCoo Songs: You Don't Have To Be A Star (in duet with Billy Davis Jr.)
The McCoys Songs: Hang On Sloopy (Single Version)
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) - Lose Control (& Becky Hill & Goodboys)
Melanie C
Melanie Chisholm Also known as Mel C
See also: Spice Girls

Songs: When You're Gone (in duet with Bryan Adams) - First Day of My Life - I Turn To You - I Want Candy - Carolyna
Meridian Dan Songs: German Whip (feat. Big H & JME)
Metallica
James Hetfield, Lars Ulrich, Kirk Hammett & Robert Trujillo
Songs: Enter Sandman - Whiskey In The Jar - Nothing Else Matters - Sad But True - For Whom The Bell Tolls
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: Call Me Beep Me (From the TV series Kim Possible) - Dip It Low - AM to PM - When You Look At Me - Whatever U Want (feat. Joe Budden)
Military Wives Choir Songs: Sing (& Gary Barlow & The Commonwealth Band) - Wherever You Are (X Factor)
Milk & Honey Songs: Hallelujah (& Gali Atari) - Hallelujah (הללויה Hebrew version) (& Gali Atari)
Miss Saigon
Musicals & Broadway (1989)
Claude-Michel Schoenberg & Alain Boublil

Songs: Sun and Moon - The Movie in My Mind - Now That I've Seen Her - Bui Doi - I'd Give My Life For You
MK Songs: 17 - Always (Route 94 Remix) (feat. Alana)
Janelle Monáe
Songs: We Are Young (& Fun) - Unbreakable (& Kelly Clarkson) - Tightrope (feat. Big Boi) - What Is Love? (From Rio 2 movie soundtrack) - Make Me Feel
Monsters, Inc. Songs: If I Didn't Have You - Si je ne t'avais pas (Eric Métayer & Jacques Frantz)
Sara Montiel Songs: Quizás, Quizás, Quizás (From Noches de Casablanca movie soundtrack)
The Moody Blues
Graeme Edge, Justin Hayward, John Lodge, Denny Laine, Mike Pinder, Ray Thomas, Clint Warwick, Rodney Clark, Patrick Moraz
Songs: Nights in White Satin (Single Version) - Nights in White Satin (Album Version) - Question - Tuesday Afternoon - Go Now
Morecambe and Wise
Eric Morecambe & Ernie Wise
Songs: Bring Me Sunshine - Positive Thinking
Moriarty Songs: Jimmy
Alain Morisod Songs: River Blue (& Sweet People) - Une chanson italienne (& Sweet People) - Adieu et bonne chance (& Sweet People) - Le marchand de bonheur (& Sweet People)
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
(1756 – 1791)
Songs: Voi che sapete (le Mariage de Figaro) - Ave verum corpus - Non so più cosa son, cosa faccio (Le nozze di Figaro)
Muse
Matthew Bellamy, Dominic Howard & Christopher Wolstenholme
Songs: Uprising - Can't Take My Eyes Off You - Unintended - Feeling Good - Starlight
Music and Lyrics Songs: Way Back Into Love (Hugh Grant & Drew Barrymore)
Mylo Songs: In My Arms