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) - Maybe It's Time (Bradley Cooper) - Look What I Found (Lady Gaga)
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: Dancing Queen - Mamma Mia - ABBA Medley - The Winner Takes It All - Money, Money, Money
Abel Songs: Onderweg
AC/DC
Brian Johnson, Angus Young, Malcolm Young, Cliff Williams & Phil Rudd
Songs: Highway To Hell - You Shook Me All Night Long - Hells Bells - T.N.T - Thunderstruck
Ace
See also: Paul Carrack
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) - Sweet Emotion - Walk This Way (duet) (& Run-DMC) - Dude (Looks Like A Lady)
Afroman
Songs: Crazy Rap (Colt 45) - Because I Got High
Aggro Santos Songs: Candy (feat. Kimberly Wyatt) - Like U Like (feat. Kimberley Walsh)
AJR
Songs: Sober Up (feat. Rivers Cuomo) - I'm Ready
Al.Hy Songs: Echo
Alabama Shakes
Brittany Howard
Songs: Hold On - Don't Wanna Fight
Alabina Songs: Salma ya salama (Olé Y Ola) - Alabina - C'est la vie (La vérité si je mens 2)
Alaska Songs: ¿A quién le importa? - Bailando (& Los Pegamoides)
Alderliefste Songs: Laat Me / Vivre (& Ramses Shaffy & Liesbeth List)
Alle Farben Songs: Supergirl (feat. Anna Naklab & Younotus) - Only Thing We Know (feat. Kelvin Jones & Younotus) - Bad Ideas - She Moves (Far Away) (feat. Graham Candy) - Please Tell Rosie (feat. Younotus)
Lily Allen
Also known as Lily Rose Cooper
Songs: Dream A Little Dream (& Robbie Williams) - Fuck You - Somewhere Only We Know (John Lewis) - Not Fair - 22
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
Anouk
Anouk Teeuwe
Songs: Sacrifice - Nobody's Wife - The Dark - Lost - Everything
Anstandslos & Durchgeknallt Songs: Egal (feat. Jasmiina)
Steve Aoki
Songs: Azukita (& Daddy Yankee, Play-N-Skillz & Elvis Crespo)
Arjon Songs: Schudden (feat. DJ Nelis) - Zakka zakka (feat. DJ Willem de Wijs & Feest DJ Bas)
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: I Am the Highway - Like a Stone - Be Yourself - Show Me How to Live - Getaway Car
Augustana Songs: Boston
Avenue Q Songs: There's a Fine, Fine Line (Kate Monster & Lucy) - Special
Avicii
Songs: Wake Me Up! (feat. Aloe Blacc) - Hey Brother - Levels - Without You (feat. Sandro Cavazza) - Addicted To You (feat. Audra Mae)
Awolnation Songs: Sail
Ayman Songs: Mein Stern