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
The Best and Worst Moments from "The Bachelor"
44 Most Outrageous Grammy Looks Of All Time
Topless in Tinseltown