Martin Garrix chats with iHeartRadio's Myles Galloway about his new song 'Smile' ft. Carolina Liar, how it came to be - and how it makes him smile! Martin Garrix tells Myles about the spontaneous music video for Smile and how he checks in on the crowd's vibe when DJing a festival. Finally, Martin Garrix talks about Coldplay playing his son Breakaway, and how he's incorporated Coldplay songs in his set! #OSHEAGA Coverage Presented by Le Centre Sheraton Montreal! Full coverage here: https://bit.ly/3WPo78o