When the radio juggernaut that is iHeartRadio does an awards show, it does it big. After enlisting musical juggernauts like Justin Timberlake, Rihanna and Macklemore & Ryan Lewis as nominees for its inaugural show, today (April 21), iHeartRadio announced its lineup of performers, and it's pretty big.

The genre-bending award show will feature performances from a wide variety of artists, focusing largely on pop and hip-hop but including more fringe types of music, as well. Drake, Pharrell Williams, Kendrick Lamar and Pitbull will be representing hip-hop. Pop will come by the way of Shakira, Ed Sheeran and Ariana Grande. Blake Shelton and Luke Bryan will be bringing the country. Meanwhile, 30 Seconds to Mars and Arcade Fire will be representing the rock side of things.

In addition to performers, iHeartRadio also announced some of the evening's presenters, which also come in the form of some of music's biggest acts. Lady Gaga, Katy Perry, Chris Martin, Lorde and more will be present at the ceremony.

The first ever iHeartRadio Music Awards will take place on May 1 at 8 p.m., airing on NBC. The winners will be chosen by fan vote, which runs from now through April 25.

Check out the full list of nominees below:

Artist of the Year:
Imagine Dragons
Justin Timberlake
Macklemore & Ryan Lewis
Maroon 5
Rihanna

Song of the Year:
"Hold On, We're Going Home," Drake (feat. Majid Jordan)
"Mirrors," Justin Timberlake
"Radioactive," Imagine Dragons
"Stay," Rihanna (feat. Mikky Ekko)
"The Monster," Eminem (feat. Rihanna)

Best Collaboration:

"Holy Grail," Jay Z (feat. Justin Timberlake)
"Stay," Rihanna (feat. Mikky Ekko)
"Suit & Tie," Justin Timberlake (feat. Jay Z)
"The Monster," Eminem (feat. Rihanna)
"Timber," Pitbull (feat. Kesha)

Best New Artist:
Florida Georgia Line
Icona Pop
Imagine Dragons
Lorde
Macklemore & Ryan Lewis
Passenger

Country Song of the Year:

"Boys 'Round Here," Blake Shelton
"Highway Don't Care," Tim McGraw w/ Taylor Swift
"It Goes Like This," Thomas Rhett
"Mine Would Be You," Blake Sheton
"That's My Kind Of Night," Luke Bryan

Hip-Hop/R&B Song of the Year:
"Blurred Lines," Robin Thicke (feat. Pharrell & T.I.)
"Hold On, We're Going Home," Drake (feat. Majid Jordan)
"Holy Grail," Jay Z (feat. Justin Timberlake)
"Pour It Up," Rihanna
"Started From The Bottom," Drake

EDM Song of the Year:
"Get Lucky," Daft Punk (feat. Pharrell Williams)
"Stay The Night," Zedd (feat. Hayley Williams)
"Summertime Sadness," Lana Del Rey (feat. Cedric Gervais)
"Sweet Nothing," Calvin Harris (feat. Florence Welch)
"Wake Me Up!" Avicii

Alternative Rock Song of the Year:
"Demons," Imagine Dragons
"Do I Wanna Know?" Arctic Monkeys
"Pompeii," Bastille
"Royals," Lorde
"Safe and Sound," Capital Cities

Best Lyrics:
"Wake Me Up!" Avicii
"I Love It," Icona Pop (feat. Charli XCX)
"Say Something," A Great Big World
"Same Love," Macklemore & Ryan Lewis
"Wrecking Ball," Miley Cyrus

Best Fan Army:

Arianators (Ariana Grande)
Little Monsters (Lady Gaga)
Lovatics (Demi Lovato)
Mahomies (Austin Mahone)
Rihanna Navy (Rihanna)
Swifties (Taylor Swift)

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