The nominees for the iHeartRadio Music Awards are in, and it looks like it's going to be a showdown between Rihanna and Justin Timberlake.

Rih-Rih's nominated seven times in five categories (both "Stay" and "The Monster" with Eminem are up for Song of the Year and Best collaboration), while JT's a contender in four categories -- with "Suit & Tie" and "Holy Grail" both up for Best Collaboration. Also leading the nominees are Imagine Dragons, who are up for four awards, Macklemore and Ryan Lewis, with three nods, and Lorde, with two.

And it's up to you who wins: voting is open at their website until April 25.

The iHeartRadio Music Awards air live on NBC on May 1.

Here's the full list of nominees:

Song of the Year

"Stay" Rihanna feat. Mikky Ekko

"Mirrors" Justin Timberlake"

"The Monster" Eminem feat. Rihanna

"Hold On We're Going Home" Drake feat. Majid Jordan

"Radioactive" Imagine Dragons

Artist of the Year

Rihanna

Justin Timberlake

Imagine Dragons

Maroon 5

Macklemore & Ryan Lewis

Best New Artist

Icona Pop

Passenger

Lorde

Imagine Dragons

Macklemore & Ryan Lewis

Florida Georgia Line

Best Fan Army

Rihanna Navy

Little Monsters

Arianators

Swifties

Mahomies

Lovatics

Best Collaboration

"Timber" Pitbull feat. Ke$ha

"Stay" Rihanna feat. Mikky Ekko

"Suit & Tie" Justin Timberlake feat. Jay Z

"The Monster" Eminem feat. Rihanna

"Holy Grail" Jay Z feat. Justin Timberlake

Country Song of the Year

"Highway Don't Care" Tim McGraw feat. Taylor Swift

"Boys 'Round Here" Blake Shelton

"That's My Kind of Night" Luke Bryan

"Mine Would Be You" Blake Shelton

"It Goes Like This" Thomas Rhett

Hip-Hop/ R&B Song of the Year

"Pour It Up" Rihanna

"Holy Grail" JAY Z feat. Justin Timberlake

"Hold On We're Going Home" Drake feat. Majid Jordan

"Blurred Lines" Robin Thicke feat. T.I. & Pharrell

"Started From The Bottom" Drake

EDM Song of the Year

"Wake Me Up" Avicii

"Get Lucky" Daft Punk feat. Pharrell

"Summertime Sadness" Lana Del Rey feat. Cedric Gervais

"Stay The Night" Zedd feat. Hayley Williams

"Sweet Nothing" Calvin Harris feat. Florence Welch

Alt Rock Song of the Year

"Royals" Lorde

"Pompeii" Bastille

"Demons" Imagine Dragons

"Do I Wanna Know" Arctic Monkeys

"Safe And Sound" Capital Cities

Best Lyrics

"I Love It" Icona Pop

"Wrecking Ball" Miley Cyrus

"Say Something" A Great Big World

"Wake Me Up" Avicii

"Same Love" Macklemore & Ryan Lewis