2015 Billboard Music Awards' Nominees Announced

Ludacris and Chrissy Teigen will host the annual awards show.

Ludacris will host the May 17 awards show alongside Chrissy Teigen live from the MGM Grand Garden Arena in Las Vegas.

"She doesn't even need any advice," Ludacris said of Teigen, a first-time host. "A lot of people, they're going to really see her personality come out. She's great at this."

"She's going to surprise people this year," he said. "It's Vegas and it's all about having a party this year and getting a little wild."

Wentz and his band will play their song "Uma Thurman" live for the first time on TV at the show with special guest Wiz Khalifa.

"It'll be awesome," Wentz said, adding that the band got the actress's permission to use her name in their song but "don't know" what her reaction is now that it's a hit.

Read below for the nominations announced today and tune into the Billboard Music Awards on May 17, 2015, on ABC.

Top Female Artist

Meghan Trainor

Top Male Artist

Drake

Ed Sheeran

Top Artist

Ariana Grande

One Direction

Katy Perry

Sam Smith

Taylor Swift

Top Billboard 200 Album

Pentatonix, “That’s Christmas to Me”

Ed Sheeran, “x”

Sam Smith, “In the Lonely Hour”

Taylor Swift, “1989”

Top 100 Hot 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 Artist:

Ariana Grande

One Direction

Katy Perry

Sam Smith

Taylor Swift

Top New Artist:

5 Seconds of Summer

Iggy Azalea

Hozier

Sam Smith

Meghan Trainor

Top Male Artist:

Drake

Pharrell Williams

Ed Sheeran

Sam Smith

Justin Timberlake

Top Female Artist:

Iggy Azalea

Ariana Grande

Katy Perry

Taylor Swift

Meghan Trainor

Top Duo/Group:

5 Seconds of Summer

Florida Georgia Line

Magic!

Maroon 5

One Direction

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

Top Radio Songs Artist:

John Legend

Maroon 5

Ed Sheeran

Sam Smith

Taylor Swift

Top Touring Artist:

Lady Gaga

One Direction

Katy Perry

The Rolling Stones

Justin Timberlake

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&B Artist:

Beyoncé

Chris Brown

John Legend

Trey Songz

Pharrell Williams

Top Rap Artist:

Iggy Azalea

J. Cole

Drake

Nicki Minaj

Rae Sremmurd

Top Country Artist:

Jason Aldean

Luke Bryan

Florida Georgia Line

Brantley Gilbert

Blake Shelton

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 Billboard 200 Album:

Maroon 5 “V”

Pentatonix “That’s Christmas to Me”

Ed Sheeran “x”

Sam Smith “In the Lonely Hour”

Taylor Swift “1989”

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&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”

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 featuring Bruno Mars "Uptown Funk!"

Sam Smith “Stay With Me”

Taylor Swift “Shake It Off”

Meghan Trainor “All About That Bass”

Pharrell Williams “Happy"

Top Radio Song:

John Legend “All of Me”

Magic! “Rude”

Nico & Vinz “Am I Wrong”

Sam Smith “Stay With Me”

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&B Song:

Chris Brown Featuring Lil Wayne, French Montana, Too $hort & Tyga “Loyal”

Jason Derulo Feat. 2 Chainz “Talk Dirty”

Jeremih Featuring YG “Don’t Tell ‘Em”

John Legend “All of Me”

Pharrell Williams “Happy”

Top Rap Song:

Iggy Azalea Feat. Charli XCX “Fancy”

Iggy Azalea Feat. Rita Ora “Black Widow”

Big Sean Featuring E-40 “I Don’t F* With You”

Nicki Minaj “Anaconda”

Bobby Shmurda “Hot Boy”

Top Country Song:

Jason Aldean “Burnin’ It Down”

Luke Bryan “Play It Again”

Sam Hunt “Leave the Night On”

Florida Georgia Line Featuring 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 Featuring Farruko “6 AM”

Enrique Iglesias Featuring Descemer Bueno & Gente de Zona “Bailando”

Romeo Santos “Eres Mía”

Romeo Santos Featuring Drake “Odio”

Romeo Santos “Propuesta Indecente”

Top Dance/Electronic Song:

Clean Bandit Featuring Jess Glynne “Rather Be”

Disclosure Featuring Sam Smith “Latch”

DJ Snake & Lil Jon “Turn Down For What”

Ariana Grande Featuring Zedd “Break Free”

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”

Billboard Chart Achievement Award

Taylor Swift

Iggy Azalea

Meghan Trainor