A Perfect Circle
Also known as APC - Maynard James Keenan (Tool & Puscifer)
Songs: Passive - 3 Libras - Imagine - Judith
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! (musical) & Mamma Mia! Here We Go Again

Songs: Dancing Queen - Mamma Mia - The Winner Takes It All - Chiquitita - Thank You For The Music
AC/DC
Brian Johnson, Angus Young, Malcolm Young, Cliff Williams & Phil Rudd
Songs: There's Gonna Be Some Rockin' - You Shook Me All Night Long - Hard as a Rock - Back in Black - Highway to Hell
Ace Songs: How Long
Adiemus Songs: Adiemus (Karl Jenkins)
Aerosmith
Steven Tyler, Joe Perry, Tom Hamilton, Brad Whitford & Joey Kramer
Songs: I Don't Want to Miss a Thing - Sweet Emotion - Dream On (Short version) - Walk This Way - Love In An Elevator
AJR
Songs: Bang! - Sober Up (feat. Rivers Cuomo) - I'm Ready
Alabama Shakes
Brittany Howard
Songs: Hold On - Don't Wanna Fight
Alabina Songs: Alabina - C'est la vie (La vérité si je mens 2) - Salma ya salama (Olé Y Ola)
Aladdin (1992 film)
Musical film (1992)
See also: Aladdin (2019 film) & Aladdin (musical)

Songs: A Whole New World (Aladdin's Theme) (Peabo Bryson & Regina Belle) - A Whole New World (Lea Salonga & Brad Kane) - Friend Like Me (Robin Williams) - Prince Ali (Robin Williams) - Arabian Nights (Bruce Adler)
Alaska Songs: Ni tú ni nadie - Bailando (& Los Pegamoides) - ¿A quién le importa?
Eden Alene
Songs: Set Me Free (Eurovision)
Alice in Wonderland (1951 film) Songs: I'm Late (Bill Thompson) - In a World of My Own (Kathryn Beaumont) - Dans le monde de mes rêves (Victoria Germain) - Je suis en retard
Lily Allen
Also known as Lily Rose Cooper
Songs: Not Fair - Fuck You - True Love (& Pink) - Somewhere Only We Know (John Lewis) - Dream A Little Dream (& Robbie Williams)
Carl Anderson Songs: Friends and Lovers (& Gloria Loring)
Michael Andrews Songs: Mad World (Donnie Darko)
Ray Anthony Songs: Hokey Pokey (& Jo Ann Greer) - At Last
Steve Aoki Songs: Azukita (& Daddy Yankee, Play-N-Skillz & Elvis Crespo)
Arash Songs: Temptation (feat. Rebecca (Extended version))
Jann Arden Songs: Insensitive - Good Mother (Single Version) - Will You Marry Me (feat. Alabama)
AronChupa Songs: I'm An Albatraoz (Nora Ekberg)
ATB
Songs: Your Love (9PM) (& A7S & Topic) - 9 PM (Till I Come) (feat. Yolanda Rivera)
Avicii
Songs: Hey Brother - Addicted to You (feat. Audra Mae) - Wake Me Up! (feat. Aloe Blacc) - Without You (feat. Sandro Cavazza) - The Nights
Awolnation Songs: Sail