Rihanna, Justin Timberlake Lead iHeartRadio Awards Nominees

Rihanna and Justin Timberlake are among musicians who score multiple nominations at the first annual iHeartRadio Awards. The Bajan singer is the biggest nominee as she bags seven nods in categories including Artist of the Year and Best Fan Army.

Her collaboration with Eminem, "The Monster", is nominated for Song of the Year and Best Collaboration awards. The same two categories also include the 25-year-old star's hit single with Mikky Ekko, "Stay".

Meanwhile, Timberlake nabs five nominations in four different categories including Artist of the Year and Song of the Year for "Mirrors". He's also nominated twice in the Best Collaboration category for his own single "Suit & Tie" and Jay-Z's hit "Holy Grail".

Behind Timberlake is Imagine Dragons, who's also up for Artist of the Year and Song of the Year for their "Radioactive". The Las Vegas-based rock band is also set to compete against country duo Florida Georgia Line, Swedish duo Icona Pop, Kiwi singer Lorde, rap duo Macklemore & Ryan Lewis and newcomer Passenger in Best New Artist category.

Other nominees include Drake (Song of the Year, Hip-Hop/R&B Song of the Year for "Hold on We're Going Home"), Taylor Swift (Best Fan Army and Country Song of the Year for Tim McGraw's "Highway Don't Care") and Avicii (EDM Song of the Year, Best Lyrics for "Wake Me Up").

Nominees of iHeartRadio Awards were based on results from the newly introduced iHeartRadioChart, which compiles airplay-based listener feedback and performance data, digital streaming data from the iHeartRadio platform and sales, social video data and tags from Big Champagne and Shazam. Winners will be revealed at the ceremony that's set to air May 1 on NBC from the Shrine Auditorium in Los Angeles.

2014 iHeartRadio Awards Nominees 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 ft. Majid Jordan
• "Mirrors" - Justin Timberlake
• "Radioactive" - Imagine Dragons
• "Stay" - Rihanna ft. Mikky Ekko
• "The Monster" - Eminem ft. Rihanna

Best Collaboration:

• "Holy Grail" - Jay-Z ft. Justin Timberlake
• "Stay" - Rihanna ft. Mikky Ekko
• "Suit & Tie" - Justin Timberlake ft. Jay-Z
• "The Monster" - Eminem ft. Rihanna
• "Timber" - Pitbull ft. Ke$ha

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 with Taylor Swift
• "It Goes Like This" - Thomas Rhett
• "Mine Would Be You" - Blake Shelton
• "That's My Kind of Night" - Luke Bryan

Hip-Hop/R&B Song of the Year:

• "Blurred Lines" - Robin Thicke ft. T.I. & Pharrell Williams
• "Hold on We're Going Home" - Drake ft. Majid Jordan
• "Holy Grail" - Jay-Z ft. Justin Timberlake
• "Pour It Up" - Rihanna
• "Started From the Bottom" - Drake

EDM Song of the Year:

• "Get Lucky" - Daft Punk ft. Pharrell Williams
• "Stay the Night" - Zedd ft. Hayley Williams
• "Summertime Sadness" - Lana Del Rey ft. Cedric Gervais
• "Sweet Nothing" - Calvin Harris ft. 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 (Vocals by Aloe Blacc)
• "I Love It" - Icona Pop ft. 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