A Star is Born
Lady Gaga & Bradley Cooper
Musical film (2018)

Songs: Shallow (Lady Gaga & Bradley Cooper) - Always Remember Us This Way (Lady Gaga) - I'll Never Love Again (Lady Gaga) - Is That Alright? (Lady Gaga) - Maybe It's Time (Bradley Cooper)
ABBA
Anni-Frid Lyngstad, Agnetha Ase Fältskog, Goran Bror Benny Andersson & Björn Christian Ulvaeus
See also: Mamma Mia! & Mamma Mia! Here We Go Again

Songs: Thank You For The Music - Dancing Queen - Mamma Mia - ABBA Medley - The Winner Takes It All
AC/DC
Brian Johnson, Angus Young, Malcolm Young, Cliff Williams & Phil Rudd
Songs: Highway To Hell - Whole Lotta Rosie - Touch Too Much - Dirty Deeds Done Dirt Cheap - You Shook Me All Night Long
Ace Songs: How Long
Adoro Songs: Liebe ist
Aerosmith
Steven Tyler, Joe Perry, Tom Hamilton, Brad Whitford & Joey Kramer
Songs: I Don't Want to Miss a Thing - Dream On (Short version) - Walk This Way - Come Together - Dude (Looks Like A Lady)
Afroman Songs: Because I Got High - Crazy Rap (Colt 45)
Aggro Santos Songs: Candy (feat. Kimberly Wyatt) - Like U Like (feat. Kimberley Walsh)
Air Songs: All I Need
AJR Songs: Sober Up (feat. Rivers Cuomo) - I'm Ready
Al.Hy Songs: Echo
Alabina Songs: Alabina - Salma ya salama (Olé Y Ola) - C'est la vie (La vérité si je mens 2)
Alaska Songs: Bailando (& Los Pegamoides) - ¿A quién le importa?
Alderliefste Songs: Laat Me / Vivre (& Ramses Shaffy & Liesbeth List)
Alle Farben Songs: Little Hollywood - Only Thing We Know (feat. Kelvin Jones & Younotus) - Please Tell Rosie (feat. Younotus) - She Moves (Far Away) (feat. Graham Candy) - Supergirl (feat. Anna Naklab & Younotus)
Lily Allen
Also known as Lily Rose Cooper
Songs: Somewhere Only We Know (John Lewis) - Not Fair - Fuck You - Dream A Little Dream (& Robbie Williams) - Smile
Alok Songs: Hear Me Now (& Bruno Martini feat. Zeeba)
Carl Anderson Songs: Friends and Lovers (in duet with Gloria Loring)
Chris Anderson Songs: Last Night (feat. DJ Robbie)
Clark Anderson Songs: Give Me Something Real (Living Out Loud)
Angel Songs: Wonderful
Anne-Marie
Anne-Marie Nicholson
Songs: Rewrite the Stars (& James Arthur) - 2002 - Rockabye (feat. Sean Paul & Clean Bandit) - Friends (feat. Marshmello) - Ciao Adios
Anstandslos & Durchgeknallt Songs: Egal (feat. Jasmiina)
Steve Aoki Songs: Azukita (& Daddy Yankee, Play-N-Skillz & Elvis Crespo)
Arjon Songs: Zakka zakka (feat. DJ Willem de Wijs & Feest DJ Bas) - Schudden (feat. DJ Nelis)
AronChupa Songs: I'm An Albatraoz (Nora Ekberg)
Marc Aryan Songs: Katy
Susan Ashton Songs: The Gift (in duet with Collin Raye) - Closer
Natacha Atlas Songs: Mon amie la rose (Single Version)
Audioslave
Chris Cornell, Tom Morello, Tim Commerford & Brad Wilk
Songs: Cochise - Show Me How to Live - Gasoline - Be Yourself - Like a Stone
Avenue Q
The musical
Songs: There's a Fine, Fine Line (Kate Monster & Lucy) - Special
Awolnation Songs: Sail
Ayman Songs: Mein Stern