iHeartRadio Music Awards: Fashion Is FIERCE on the Red Carpet

The theme of the red carpet is black, white and BOLD, with Iggy Azalea rockin' some printed pants, Meghan Trainor going sexy in a black bustier dress, and Zendaya looking beautiful in a bright and bold mini.

PHOTOS: Best Dressed at the iHeartRadio Music Awards

[photo: Getty Images]

Hosted by Jamie Foxx, the 2015 ceremony will be broadcast live from the Shrine Auditorium in Los Angeles featuring performances from the radio's biggest artists including Rihanna, Jennifer Hudson, Jason Derulo, Sam Smith, Meghan Trainor, Florida Georgia Line, Iggy Azalea and more. Justin Timberlake will also be receiving the iHeartRadio Innovator Award for his contributions to pop music.

WATCH: Check Out the Live Stream

There will be all kinds of guest appearances, including Taylor Swift, which means we can expect to see her dancing in the audience like it's 1989.

Iggy Azalea and Sam Smith lead the night with five nominations, while Taylor Swift and Ariana Grande each received four nominations. They, along with Luke Bryan, also compete with for "Best Artist of the Year."

Watch the iHeartRadio Music Awards live on NBC when they air March 29 at 8 PM! You can also live stream the event by using the NBC app or their website. You can also listen to the awards show by creating an iHeartRadio account and listening on iHeartRadio's website or their app.

List of Nominees:

Artist of the Year
Ariana Grande
Iggy Azalea
Luke Bryan
Sam Smith
Taylor Swift

Song of the Year
"All About That Bass" - Meghan Trainor
"All of Me" - John Legend
"Happy" - Pharrell Williams
"Shake It Off" - Taylor Swift
"Stay With Me" - Sam Smith

Best Collaboration
"Bang Bang" - Jessie J + Ariana Grande + Nicki Minaj
"Dark Horse" - Katy Perry featuring Juicy J
"Fancy" - Iggy Azalea featuring Charli XCX
"Problem" - Ariana Grande featuring Iggy Azalea
"Talk Dirty" - Jason Derulo featuring 2 Chainz

Best New Artist
Bastille
Cole Swindell
Iggy Azalea
Meghan Trainor
Sam Smith

Country Song of the Year
"Bartender" - Lady Antebellum
"Burnin' It Down" - Jason Aldean
"Dirt" - Florida Georgia Line
"Give Me Back My Hometown" - Eric Church
"Play It Again" - Luke Bryan

Hip Hop/R&B Song of the Year
"Don't Tell 'Em" - Jeremih featuring YG
"Drunk in Love" - Beyoncé featuring Jay Z
"Flawless" - Beyoncé
"Loyal" - Chris Brown featuring Lil Wayne and Tyga
"New Flame" - Chris Brown featuring Usher and Rick Ross

Dance Song of the Year
"Animals" - Martin Garrix
"Blame" - Calvin Harris featuring John Newman
"La La La" - Naughty Boy featuring Sam Smith
"Summer" - Calvin Harris
"Waves" - Mr. Probz

Alternative Rock Song of the Year
"Come With Me Now" - KONGOS
"Do I Wanna Know?" - Arctic Monkeys
"Fever" - The Black Keys
"Something From Nothing" - Foo Fighters
"Take Me to Church" - Hozier

Best Lyrics
"All of Me" - John Legend
"Blank Space" - Taylor Swift
"Counting Stars" - OneRepublic
"Habits (Stay High)" - Tove Lo
"Stay With Me" - Sam Smith
"Thinking Out Loud" - Ed Sheeran

Best Fan Army
5SOSFAM - 5 Seconds of Summer
Arianators - Ariana Grande
Bey Hive - Beyoncé
Team Breezy - Chris Brown
Sheerios - Ed Sheeran
Church Choir - Eric Church
Directioners - One Direction
Selenators - Selena Gomez
Mendes Army - Shawn Mendes
Swifties - Taylor Swift