Rihanna leads iHeartRadio nominations

Pop star Rihanna looks set to dominate the inaugural iHeartRadio Music Awards after scoring seven nominations.

The Umbrella star landed the most nods ahead of the prizegiving in Los Angeles, with a mention in the category for Artist Of The Year and doubling up for Best Song - her Eminem duet The Monster will compete against Stay, her track with Mikky Ekko.

Rihanna also scored a double mention for the same songs in the Best Collaboration category, as well as Hip Hop/R&B Song of the Year for Pour It Up and Best Fan Army.

Other major nominees include fellow pop star Justin Timberlake, who landed five mentions, going up against Rihanna for Artist of the Year along with Imagine Dragons, Macklemore & Ryan Lewis, and Maroon 5. His track Mirrors will also compete for the Song of the Year honour, while his two tracks with Jay Z - Suit & Tie and Holy Grail - will compete for Best Collaboration.

The iHeartRadio Awards will air live from L.A.'s Shrine Auditorium on 1 May (14).