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

Songs: Shallow (Lady Gaga & Bradley Cooper) - Always Remember Us This Way (Lady Gaga) - Maybe It's Time (Bradley Cooper) - I'll Never Love Again (Lady Gaga) - Is That Alright? (Lady Gaga)
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 - Thank You For The Music - The Winner Takes It All - Why Did It Have to Be Me?
AC/DC
Brian Johnson, Angus Young, Malcolm Young, Cliff Williams & Phil Rudd
Songs: You Shook Me All Night Long - Back in Black - Highway to Hell - Thunderstruck - Walk All Over You
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 - What It Takes - Sweet Emotion - Come Together - Dream On (Short version)
Ain't Misbehavin'
Musical film (1955)
Songs: Ain't Misbehavin'
AJR
Songs: Bang! - I'm Ready - Sober Up (feat. Rivers Cuomo)
Alabama Shakes
Brittany Howard
Songs: Hold On - Don't Wanna Fight
Alabina Songs: Alabina - Salma ya salama (Olé Y Ola) - Lololé (Don't Let Me Be Misunderstood) - C'est la vie (La vérité si je mens 2)
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) - Je suis en retard - Dans le monde de mes rêves (Victoria Germain)
Alle Farben Songs: Lemon Tree (feat. Fool's Garden) - Supergirl (feat. Anna Naklab & YOUNOTUS) - Please Tell Rosie (feat. YOUNOTUS) - Fading (& Ilira) - Only Thing We Know (feat. Kelvin Jones & YOUNOTUS)
Lily Allen
Also known as Lily Rose Cooper
Songs: True Love (& Pink) - Fuck You - Dream A Little Dream (& Robbie Williams) - Somewhere Only We Know (John Lewis) - Smile
Alliance Ethnik Songs: Respect (feat. Vinia Mojica) - Simple et funky
Alok Songs: Hear Me Now (& Bruno Martini feat. Zeeba)
Herb Alpert
Herb Alpert & Tijuana Brass
Songs: This Guy's in Love with You - Tijuana Taxi - Jingle Bells
Aminé Songs: Caroline
Carl Anderson Songs: Friends and Lovers (& Gloria Loring)
Chris Anderson Songs: Last Night (feat. DJ Robbie)
Michael Andrews Songs: Mad World (Donnie Darko)
Andriamad Songs: Alléluia (Eurovision France)
Anne-Marie
Anne-Marie Nicholson
Songs: 2002 - Friends (feat. Marshmello) - Rockabye (feat. Sean Paul & Clean Bandit) - Rewrite the Stars (& James Arthur) - Ciao Adios
Anouk
Anouk Teeuwe
Songs: Girl - Nobody's Wife - Jerusalem - Everything - Lost
Ray Anthony Songs: Hokey Pokey (& Jo Ann Greer) - At Last - Dragnet
Steve Aoki Songs: Azukita (& Daddy Yankee, Play-N-Skillz & Elvis Crespo)
Jann Arden Songs: Insensitive - Good Mother (Single Version) - Will You Marry Me (feat. Alabama)
AronChupa Songs: I'm An Albatraoz (Nora Ekberg)
Art of Noise Songs: Kiss (feat. Tom Jones)
Marc Aryan Songs: Katy
ATB
Songs: Your Love (9PM) (& A7S & Topic) - 9 PM (Till I Come) (feat. Yolanda Rivera)
Augustana Songs: Boston
Aventura Songs: Dile al amor - Obsesión (feat. Judy Santos) - Ella y Yo (feat. Don Omar) - Mi corazoncito
Avicii
Songs: Hey Brother - Wake Me Up! (feat. Aloe Blacc) - Without You (feat. Sandro Cavazza) - Addicted to You (feat. Audra Mae) - The Nights
Awolnation Songs: Sail