Announcing the Lineup for the 2015 iHeartRadio Music Festival!

Today, we are excited to announce the star-studded lineup for the 2015 iHeartRadio Music Festival, taking place on September 18 and 19 in Las Vegas.

Introducing Christina Grimmie, Rising Star

Meet Christina Grimmie, the 2015 winner of Macy’s iHeartRadio Rising Star competition!