Music's biggest stars are officially lining up for this year's iHeartRadio Music Awards.
Before they can watch the evening's host Jason Derulo debut his latest single "If It Ain't Love" live on television or learn which musician has the "Best Fan Army," Hollywood's musical royalty must actually show up to The Forum's red carpet to flaunt their fashions.
Also read: Sara Bareilles and Josh Groban to host the Tonys this summer
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