Ariana Grande Talks Madonna, i Heart Radio Music Festival, On Air with Ryan Seacrest

Ariana Grande teases surprises for her iHeart Radio performance in Vegas, and describes her unique onstage experience with Madonna. SUBSCRIBE: SEE MORE: On Air with Ryan Seacrest on YouTube The official home for video from On Air with Ryan Seacrest and Subscribe for exclusive celebrity interviews and music performances from American Idol and American Top 40 host Ryan Seacrest. Connect with On Air with Ryan Seacrest: Twitter: