Watch the heartwarming speech, as Gomez was a special guest at her show.
Photos: Taylor Swift With Selena Gomez, Calvin Harris, U2, Justin Timberlake and More At The iHeartRadio Awards
See a full gallery of photos from the iHeartRadio Music Awards!
Taylor Swift, Calvin Harris, Selena Gomez and Justin Timberlake To Appear At iHeart Radio Music Awards!
Congratulations to Taylor Swift who will be accepting the Best Tour Award!