Who's taking home the top prize at the 2015 Billboard Music Awards? Check out all the nominees and winners!
TOP ARTIST
**Taylor Swift** (WINNER)
Ariana Grande
One Direction
Katy Perry
Sam Smith
TOP COUNTRY ARTIST
**Florida Georgia Line** (WINNER)
Jason Aldean
Luke Bryan
Brantley Gilbert
Blake Shelton
BILLBOARD CHART ACHIEVEMENT AWARD PRESENTED BY SAMSUNG GALAXY (FAN-VOTED)
**Taylor Swift** (WINNER)
Iggy Azalea
Meghan Trainor
TOP HOT 100 SONG
**Meghan Trainor, "All About That Bass"** (WINNER)
Iggy Azalea feat. Charli XCX, "Fancy"
John Legend, "All of Me"
Sam Smith, "Stay With Me"
Taylor Swift, "Shake It Off"
TOP TOURING ARTIST
**One Direction** (WINNER)
Lady Gaga
Katy Perry
The Rolling Stones
Justin Timberlake
TOP FEMALE ARTIST
**Taylor Swift** (WINNER)
Iggy Azalea
Ariana Grande
Katy Perry
Meghan Trainor
TOP RADIO SONG
**John Legend, "All of Me"** (WINNER)
MAGIC!, "Rude"
Nico & Vinz, "Am I Wrong"
Sam Smith, "Stay With Me"
Pharrell Williams, "Happy"
TOP MALE ARTIST
**Sam Smith** (WINNER)
Drake
Pharrell Williams
Ed Sheeran
Justin Timberlake
TOP RAP SONG
**Iggy Azalea feat. Charli XCX, "Fancy"** (WINNER)
Iggy Azalea feat. Rita Ora, "Black Widow"
Big Sean feat. E-40, "I Don't F--- With You"
Nicki Minaj, "Anaconda"
Bobby Shmurda, "Hot Boy"
TOP BILLBOARD 200 ALBUM
**Taylor Swift, 1989** (WINNER)
Maroon 5, V
Pentatonix, That's Christmas to Me
Ed Sheeran, x
Sam Smith, In the Lonely Hour
TOP DUO/GROUP
**One Direction** (WINNER)
5 Seconds of Summer
Florida Georgia Line
MAGIC!
Maroon 5
TOP NEW ARTIST
**Sam Smith** (WINNER)
5 Seconds of Summer
Iggy Azalea
Hozier
Meghan Trainor
TOP HOT 100 ARTIST
**Taylor Swift** (WINNER)
Iggy Azalea
Ariana Grande
Sam Smith
Meghan Trainor
TOP DIGITAL SONGS ARTIST
**Taylor Swift** (WINNER)
Iggy Azalea
Ed Sheeran
Sam Smith
Meghan Trainor
TOP BILLBOARD 200 ARTIST
**Taylor Swift** (WINNER)
One Direction
Pentatonix
Ed Sheeran
Sam Smith
TOP RADIO SONGS ARTIST
**Sam Smith** (WINNER)
John Legend
Maroon 5
Ed Sheeran
Taylor Swift
TOP SOCIAL ARTIST
**Justin Bieber** (WINNER)
Miley Cyrus
Selena Gomez
Ariana Grande
Taylor Swift
TOP STREAMING ARTIST
**Iggy Azalea** (WINNER)
Ariana Grande
Nicki Minaj
Taylor Swift
Meghan Trainor
TOP R&B ARTIST
**Pharrell Williams** (WINNER)
Beyonce
Chris Brown
John Legend
Trey Songz
TOP RAP ARTIST
**Iggy Azalea** (WINNER)
J. Cole
Drake
Nicki Minaj
Rae Sremmurd
TOP ROCK ARTIST
**Hozier** (WINNER)
Bastille
Coldplay
Fall Out Boy
Lorde
TOP LATIN ARTIST
**Romeo Santos** (WINNER)
J Balvin
Juan Gabriel
Enrique Iglesias
Prince Royce
TOP DANCE/ELECTRONIC ARTIST
**Calvin Harris** (WINNER)
Avicii
Clean Bandit
Disclosure
Lindsey Stirling
TOP CHRISTIAN ARTIST
**Hillsong United** (WINNER)
Casting Crowns
Lecrae
MercyMe
Newsboys
TOP SOUNDTRACK
**Frozen** (WINNER)
The Fault in Our Stars
Fifty Shades of Grey
Guardians of the Galaxy: Awesome Mix: Vol. 1
Into the Woods
TOP R&B ALBUM
**Pharrell Williams, G I R L** (WINNER)
Beyonce, Beyonce
Chris Brown, X
Michael Jackson, Xscape
John Legend, Love in the Future
TOP RAP ALBUM
**J. Cole, 2014 Forest Hills Drive** (WINNER)
Drake, If You're Reading This It's Too Late
Nicki Minaj, The Pinkprint
Iggy Azalea, The New Classic
Eminem, The Marshall Mathers LP 2
TOP COUNTRY ALBUM
**Jason Aldean, Old Boots, New Dirt** (WINNER)
Garth Brooks, Man Against Machine
Luke Bryan, Crash My Party
Brantley Gilbert, Just As I Am
Miranda Lambert, Platinum
TOP ROCK ALBUM
**Coldplay, Ghost Stories** (WINNER)
AC/DC, Rock or Bust
The Black Keys, Turn Blue
Hozier, Hozier
Lorde, Pure Heroine
TOP LATIN ALBUM
**Enrique Iglesias, Sex and Love** (WINNER)
Juan Gabriel, Los Do
Romeo Santos, Formula: Vol. 2
Santana, Corazon
Marc Anthony, 3.0
TOP DANCE/ELECTRONIC ALBUM
**Lindsey Stirling, Shatter Me** (WINNER)
Avicii, True
Disclosure, Settle
Calvin Harris, Motion
Skrillex, Recess
TOP CHRISTIAN ALBUM
**Lecrae, Anomaly** (WINNER)
Casting Crowns, Thrive
MercyMe, Welcome to the New
NEEDTOBREATHE, Rivers in the Wasteland
Chris Tomlin, Love Ran Red
TOP DIGITAL SONG
**Meghan Trainor, "All About That Bass"** (WINNER)
Mark Ronson feat. Bruno Mars, "Uptown Funk!"
Sam Smith, "Stay With Me"
Taylor Swift, "Shake It Off"
Pharrell Williams, "Happy"
TOP STREAMING SONG (AUDIO)
**John Legend, "All of Me"** (WINNER)
Iggy Azalea feat. Charli XCX, "Fancy"
Hozier, "Take Me to Church"
Sam Smith, "Stay With Me"
Tove Lo, "Habits (Stay High)"
TOP STREAMING SONG (VIDEO)
**Taylor Swift, "Shake It Off"** (WINNER)
Idina Menzel, "Let It Go"
Bobby Shmurda, "Hot Boy"
Taylor Swift, "Blank Space"
Meghan Trainor, "All About That Bass"
TOP R&B SONG
**Pharrell Williams, "Happy"** (WINNER)
Chris Brown feat. Lil Wayne, French Montana, Too $hort & Tyga, "Loyal"
Jason Derulo feat. 2 Chainz, "Talk Dirty"
Jeremih feat. YG, "Don't Tell 'Em"
John Legend, "All of Me"
TOP COUNTRY SONG
**Jason Aldean, "Burnin' It Down"** (WINNER)
Luke Bryan, "Play It Again"
Sam Hunt, "Leave the Night On"
Florida Georgia Line feat. Luke Bryan, "This Is How We Roll"
Florida Georgia Line, "Dirt"
TOP ROCK SONG
**Hozier, "Take Me to Church"** (WINNER)
Bastille, "Pompeii"
Coldplay, "A Sky Full of Stars"
Fall Out Boy, "Centuries"
Paramore, "Ain't It Fun"
TOP LATIN SONG
**Enrique Iglesias feat. Descemer Bueno & Gente de Zona, "Bailando"** (WINNER)
J Balvin feat. Farruko, "6 AM"
Romeo Santos, "Eres Ma"
Romeo Santos feat. Drake, "Odio"
Romeo Santos, "Propuesta Indecente"
TOP DANCE/ELECTRONIC SONG
**DJ Snake & Lil Jon, "Turn Down For What"** (WINNER)
Clean Bandit feat. Jess Glynne, "Rather Be"
Disclosure feat. Sam Smith, "Latch"
Ariana Grande feat. Zedd, "Break Free"
Calvin Harris, "Summer"
TOP CHRISTIAN SONG
**Carrie Underwood, "Something in the Water"** (WINNER)
Francesca Battistelli, "He Knows My Name"
Hillsong United, "Oceans (Where Feet May Fail)"
MercyMe, "Greater"
Newsboys, "We Believe"