Shawn Mendes gave an exclusive performance at the iHeartRadio Theater in New York on August 14th, 2014.
Listen to Shawn Mendes on iHeartRadio
Photo: Katherine Tyler for iHeartRadio
Photo: Rachel Kaplan for iHeartRadio
Most Popular Songs and Artists of 2014 By State
38 Extreme Celebrity Hairstyles
Xtina's Body Transformation