Taylor Swift at Billboard Awards
Taylor Swift was the big winner, walking away with eight accolades including one for top artistJason Merritt/Getty

At the 2015 Billboard Music Awards in Las Vegas on Sunday 17 May, Taylor Swift was the big winner of the night walking away for an impressive eight awards, including top Billboard 200 album, fan-voted Billboard chart achievement award and top artist.

Sam Smith, Iggy Azalea and Pharrell Williams were runners-up to Swift when it came to who was most successful, winning three accolades each. Smith received the award for top radio songs artist and top male artist, while Williams and Azalea walked away with top r'n'b artist and top rap artist respectively.

Hozier and John Legend won two awards each, while the likes of One Direction, Justin Bieber and Calvin Harris were also celebrating wins on the night. Here, IBTimes UK reveals the complete list of winners.

TOP ARTIST
Ariana Grande
One Direction
Katy Perry
Sam Smith
Taylor Swift

BILLBOARD CHART ACHIEVEMENT (FAN-VOTED)
Iggy Azalea
Taylor Swift
Meghan Trainor

TOP TOURING ARTIST
Lady Gaga
One Direction
Katy Perry
The Rolling Stones
Justin Timberlake

TOP FEMALE ARTIST
Iggy Azalea
Ariana Grande
Katy Perry
Taylor Swift
Meghan Trainor

TOP MALE ARTIST
Drake
Pharrell Williams
Ed Sheeran
Sam Smith
​Justin Timberlake

TOP RADIO SONG
John Legend - All Of Me
MAGIC! - Rude
Nico & Vinz - Am I Wrong
Sam Smith - Stay With Me
Pharrell Williams - Happy

TOP RAP SONG
Iggy Azalea feat. Charli XCX - Fancy
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
Maroon 5 - V
Pentatonix - That's Christmas to Me
Ed Sheeran - x
Sam Smith - In the Lonely Hour
Taylor Swift - 1989

One Direction at Billboard
One Direction picked up the award for top duo/group. Liam Payne surprised fans by saying 'thank-you' to their 'brother' ex-band member Zayn Malik during their acceptance speechEthan Miller/Getty

TOP DUO/GROUP
5 Seconds of Summer
Florida Georgia Line
MAGIC!
Maroon 5
One Direction

TOP NEW ARTIST
5 Seconds of Summer
Iggy Azalea
Hozier
Sam Smith
Meghan Trainor

TOP COUNTRY ARTIST
Jason Aldean
Luke Bryan
Florida Georgia Line
Brantley Gilbert
Blake Shelton

TOP BILLBOARD 200 ARTIST
One Direction
Pentatonix
Ed Sheeran
Sam Smith
Taylor Swift

TOP HOT 100 ARTIST
Iggy Azalea
Ariana Grande
Sam Smith
Taylor Swift
Meghan Trainor

TOP DIGITAL SONGS ARTIST
Iggy Azalea
Ed Sheeran
Sam Smith
Taylor Swift
Meghan Trainor

Sam Smith at Billboard
Sam Smith accepted his top radio songs artist award via a video stream, where he held up thankful cue cards. Smith has recently undergone throat surgery and is said to be unable to talk or sing for the next few weeksEthan Miller/Getty

TOP RADIO SONGS ARTIST
John Legend
Maroon 5
Ed Sheeran
Sam Smith
Taylor Swift

TOP SOCIAL ARTIST
Justin Bieber
Miley Cyrus
Selena Gomez
Ariana Grande
Taylor Swift

TOP STREAMING ARTIST
Iggy Azalea
Ariana Grande
Nicki Minaj
Taylor Swift
Meghan Trainor

TOP R'N'B ARTIST
Beyoncé
Chris Brown
John Legend
Trey Songz
Pharrell Williams

TOP RAP ARTIST
Iggy Azalea
J. Cole
Drake
Nicki Minaj
Rae Sremmurd

Hozier at the 2015 Billboard Music Awards
Hozier won for both top rock song (for Take Me To Church) and top rock artistJason Merritt/Getty

TOP ROCK ARTIST
Bastille
Coldplay
Fall Out Boy
Hozier
Lorde

TOP LATIN ARTIST
J Balvin
Juan Gabriel
Enrique Iglesias
Prince Royce
Romeo Santos

TOP DANCE/ELECTRONIC ARTIST
Avicii
Clean Bandit
Disclosure
Calvin Harris
Lindsey Stirling

TOP CHRISTIAN ARTIST
Casting Crowns
Hillsong United
Lecrae
MercyMe
Newsboys

TOP SOUNDTRACK
The Fault in Our Stars
Fifty Shades of Grey
Frozen
Guardians of the Galaxy: Awesome Mix: Vol. 1
Into the Woods

TOP R'N'B ALBUM
Beyoncé - Beyoncé
Chris Brown-X
Michael Jackson -Xscape
John Legend - Love in the Future
Pharrell Williams - G I R L

TOP RAP ALBUM
J. Cole - 2014 Forest Hills Drive
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
Garth Brooks - Man Against Machine
Luke Bryan - Crash My Party
Brantley Gilbert - Just As I Am
Miranda Lambert - Platinum

TOP ROCK ALBUM
AC/DC - Rock or Bust
The Black Keys - Turn Blue
Coldplay - Ghost Stories
Hozier - Hozier
Lorde - Pure Heroine

TOP LATIN ALBUM
Juan Gabriel - Los Dúo
Enrique Iglesias - Sex And Love
Romeo Santos - Formula: Vol. 2
Santana - Corazon
Marc Anthony - 3.0

TOP DANCE/ELECTRONIC ALBUM
Avicii - True
Disclosure - Settle
Calvin Harris - Motion
Skrillex - Recess
Lindsey Stirling - Shatter Me

TOP CHRISTIAN ALBUM
Lecrae - Anomaly
Casting Crowns - Thrive
MercyMe - Welcome to the New
NEEDTOBREATHE - Rivers in the Wasteland
Chris Tomlin - Love Ran Red

Meghan Trainor
Meghan Trainor picked up the award for top hot 100 song for her debut single, All About That BassEthan Miller/Getty

TOP HOT 100 SONG
Iggy Azalea feat. Charli XCX - Fancy
John Legend - All of Me
Sam Smith - Stay With Me
Taylor Swift - Shake It Off
Meghan Trainor - All About That Bass

TOP DIGITAL SONG
Mark Ronson feat. Bruno Mars - Uptown Funk!
Sam Smith - Stay With Me
Taylor Swift - Shake It Off
Meghan Trainor - All About That Bass
Pharrell Williams - Happy

TOP STREAMING SONG (AUDIO)
Iggy Azalea feat. Charli XCX - Fancy
Hozier - Take Me to Church
John Legend - All Of Me
Sam Smith - Stay With Me
Tove Lo - Habits (Stay High)

TOP STREAMING SONG (VIDEO)
Idina Menzel - Let It Go
Bobby Shmurda - Hot Boy
Taylor Swift - Blank Space
Taylor Swift - Shake It Off
Meghan Trainor - All About That Bass

TOP R'N'B SONG
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
Pharrell Williams - Happy

TOP COUNTRY SONG
Jason Aldean - Burnin' It Down
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 Bastille - Pompeii Coldplay - A Sky Full Of Stars Fall Out Boy - Centuries Hozier - Take Me To Church Paramore - Ain't It Fun

TOP LATIN SONG J Balvin feat. Farruko - 6AM Enrique Iglesias feat. Descemer Bueno & Gente De Zona - Bailando Romeo Santos - Eres Mía Romeo Santos feat. Drake - Odio Romeo Santos - Propuesta Indecente

TOP DANCE/ELECTRONIC SONG Clean Bandit feat. Jess Glynne - Rather Be Disclosure feat. Sam Smith - Latch Ariana Grande feat. Zedd - Break Free DJ Snake & Lil Jon - Turn Down For What Calvin Harris - Summer

TOP CHRISTIAN SONG
Francesca Battistelli - He Knows My Name
Hillsong United - Oceans (Where Feet May Fail)
MercyMe - Greater
Newsboys - We Believe
Carrie Underwood - Something In The Water