This year's Billboard Music Awards is held in Las Vegas at the MGM Grand Garden & Arena on May 18.
Pitbull kicks off the show with Jennifer Lopez with "We Are One (Ole Ola)":
OneRepublic and their greatest hit "Counting Stars":
Iggy Azalea performs her big hit "Fancy" with Charli XCX, and later joins Ariana Grande for "Problem":
Jennifer Lopez sings "First Love" live on stage:
Miley Cyrus and Wayne Coyne sing tribute to The Beatles with their rendition of "Lucy in the Sky With Diamonds":
Katy Perry celebrates with everyone, performing her new single "Birthday" live from England:
Lorde gives a great live performance of "Tennis Court":
Biggest surprise of the night: Michael Jackson hologram sings, spins and dances to "Slave to The Rhythm":
Sexy Shakira rocks the stage with "Empire":
Ricky Martin sets the stage of fire with his sensuality, performing "Vida":
Go Country with Miranda Lambert and Carrie Underwood's "Somethin' Bad":
John Legend serenades the crowd with "All of Me" and "You & I (Nobody in the World)":
Robin Thicke in his new shave shows us his romantic side with "Get Her Back":
Imagine Dragons' electrifying live performance of "Tiptoe":
Luke Bryan joins Florida Georgia Line in popular hit, "This Is How We Roll":
Luke Bryan sings "Play It Again":
And here's the complete list of nominees and winners for the 2014 Billboard Music Awards
Top Artist:
Miley Cyrus
Imagine Dragons
Bruno Mars
Katy Perry
WINNER: Justin Timberlake
Milestone Award presented by Chevrolet:
Ellie Goulding
OneRepublic
WINNER: Carrie Underwood
Top Country Song:
Luke Bryan "Crash My Party"
Luke Bryan "That's My Kind Of Night"
WINNER: Florida Georgia Line Featuring Nelly "Cruise"
Darius Rucker "Wagon Wheel"
Blake Shelton Featuring Pistol Annies & Friends "Boys 'Round Here"
Top Streaming Artist:
WINNER: Miley Cyrus
Imagine Dragons
Macklemore & Ryan Lewis
Katy Perry
PSY
Top R&B Song:
Beyoncé Feat. Jay Z "Drunk In Love"
Drake Featuring Majid Jordan "Hold On, We're Going Home"
Pharrell Williams "Happy"
WINNER: Robin Thicke Featuring T.I. & Pharrell Williams "Blurred Lines"
Justin Timberlake Feat. Jay Z "Suit & Tie"
Top Hot 100 Song:
Miley Cyrus "Wrecking Ball"
Imagine Dragons "Radioactive"
Lorde "Royals"
Katy Perry "Roar"
WINNER: Robin Thicke Featuring T.I. & Pharrell Williams "Blurred Lines"
Top Female Artist:
Beyoncé
Miley Cyrus
Lorde
WINNER: Katy Perry
Rihanna
Top Rock Song:
Capital Cities "Safe And Sound"
Imagine Dragons "Demons"
Imagine Dragons "Radioactive"
WINNER: Lorde "Royals"
Passenger "Let Her Go"
Top Country Artist:
WINNER: Luke Bryan
Florida Georgia Line
Darius Rucker
Blake Shelton
Taylor Swift
Top New Artist:
Bastille
Capital Cities
Ariana Grande
WINNER: Lorde
Passenger
Top Billboard 200 Album:
Beyoncé "Beyoncé"
Luke Bryan "Crash My Party"
Drake "Nothing Was The Same"
Eminem "The Marshall Mathers LP 2"
WINNER: Justin Timberlake "The 20/20 Experience"
Top Rock Album:
Lana Del Rey "Born To Die"
Fall Out Boy "Save Rock And Roll"
WINNER: Imagine Dragons "Night Visions"
Lorde "Pure Heroine"
Mumford & Sons "Babel"
Top Male Artist:
Luke Bryan
Drake
Eminem
Bruno Mars
WINNER: Justin Timberlake
Top Duo/Group:
Florida Georgia Line
WINNER: Imagine Dragons
Macklemore & Ryan Lewis
One Direction
OneRepublic
Top Billboard 200 Artist:
Beyoncé
Luke Bryan
Eminem
One Direction
WINNER: Justin Timberlake
Top Hot 100 Artist:
Miley Cyrus
WINNER: Imagine Dragons
Lorde
Katy Perry
Justin Timberlake
Top Digital Songs Artist:
Miley Cyrus
Imagine Dragons
Lorde
Macklemore & Ryan Lewis
WINNER: Katy Perry
Top Radio Songs Artist:
Imagine Dragons
Lorde
Bruno Mars
Katy Perry
WINNER: Justin Timberlake
Top Touring Artist:
Beyoncé
WINNER: Bon Jovi
P!nk
Rihanna
Bruce Springsteen & the E Street Band
Top Social Artist:
WINNER: Justin Bieber
Miley Cyrus
One Direction
Rihanna
Taylor Swift
Top R&B Artist:
Beyoncé
Pharrell Williams
Rihanna
Robin Thicke
WINNER: Justin Timberlake
Top Rap Artist:
Drake
WINNER: Eminem
Jay Z
Macklemore & Ryan Lewis
Pitbull
Top Rock Artist:
Capital Cities
Fall Out Boy
WINNER: Imagine Dragons
Lorde
Passenger
Top Latin Artist:
WINNER: Marc Anthony
Gerardo Ortiz
Jenni Rivera
Prince Royce
Romeo Santos
Top Dance/Electronic Artist:
Avicii
WINNER: Daft Punk
Calvin Harris
Lady Gaga
Zedd
Top Christian Artist:
Mandisa
Skillet
tobyMac
WINNER: Chris Tomlin
Matthew West
Top R&B Album:
Beyoncé "Beyoncé"
R. Kelly "Black Panties"
Robin Thicke "Blurred Lines"
WINNER:Justin Timberlake "The 20/20 Experience"
Justin Timberlake "The 20/20 Experience (2 of 2)"
Top Rap Album:
J. Cole "Born Sinner"
Drake "Nothing Was The Same"
WINNER: Eminem "The Marshall Mathers LP 2"
Jay Z "Magna Carta…Holy Grail"
Macklemore & Ryan Lewis "The Heist"
Top Country Album:
Garth Brooks "Blame It All On My Roots: Five Decades of Influences"
WINNER: Luke Bryan "Crash My Party"
Florida Georgia Line "Here's To The Good Time"
The Robertsons "Duck The Halls: A Robertson Family Christmas"
Blake Shelton "Based On A True Story"
Top Latin Album:
WINNER: Marc Anthony "3.0"
Alejandro Fernandez "Confidencias"
Jenni Rivera "1969- Siempre: En Vivo Desde Monterrey: Parte 1
Prince Royce "Soy El Mismo"
Romeo Santos "Formula: Vol. 2"
Top Dance/Electronic Album:
Avicii "True"
WINNER: Daft Punk "Random Access Memories"
Lady Gaga "ARTPOP"
Lindsey Stirling "Lindsey Stirling"
Zedd "Clarity"
Top Christian Album:
WINNER: Alan Jackson "Precious Memories: Volume II"
Skillet "Rise"
Third Day "Miracle"
Chris Tomlin "Burning Lights"
Various Artists "WOW Hits 2014"
Top Digital Song:
Imagine Dragons "Radioactive"
Lorde "Royals"
OneRepublic "Counting Stars"
Katy Perry "Roar"
WINNER: Robin Thicke Featuring T.I. & Pharrell Williams "Blurred Lines"
Top Radio Song:
Avicii "Wake Me Up!"
Lorde "Royals"
Katy Perry "Roar"
WINNER: Robin Thicke Featuring T.I. & Pharrell Williams "Blurred Lines"
Justin Timberlake "Mirrors"
Top Streaming Song (Audio):
Daft Punk Featuring Pharrell Williams "Get Lucky"
WINNER:Imagine Dragons "Radioactive"
Lorde "Royals"
Macklemore & Ryan Lewis Featuring Ray Dalton "Can't Hold Us"
Robin Thicke Featuring T.I. & Pharrell Williams "Blurred Lines"
Top Streaming Song (Video):
Baauer "Harlem Shake"
Miley Cyrus "We Can't Stop"
WINNER: Miley Cyrus "Wrecking Ball"
Macklemore & Ryan Lewis Featuring Wanz "Thrift Shop"
Katy Perry "Roar"
Top Rap Song:
Eminem Featuring Rihanna "The Monster"
Jay Z Featuring Justin Timberlake "Holy Grail"
WINNER: Macklemore & Ryan Lewis Featuring Ray Dalton "Can't Hold Us"
Macklemore & Ryan Lewis Featuring Wanz "Thrift Shop"
Pitbull Featuring Ke$ha "Timber"
Top Latin Song:
WINNER: Marc Anthony "Vivir Mi Vida"
Daddy Yankee "Limbo"
Enrique Iglesias Featuring Romeo Santos "Loco"
Prince Royce "Darte Un Beso"
Romeo Santos "Propuesta Indecente"
Top Dance/Electronic Song:
WINNER: Avicii "Wake Me Up!"
Daft Punk Featuring Pharrell Williams "Get Lucky"
Icona Pop Featuring Charli XCX "I Love It"
Lady Gaga "Applause"
Zedd Featuring Foxes "Clarity"
Top Christian Song:
Building 429 "We Won't Be Shaken"
Mandisa "Overcomer"
Sidewalk Prophets "Help Me Find It"
Chris Tomlin "Whom Shall I Fear (God Of Angel Armies)"
WINNER: Matthew West "Hello, My Name Is"