Shawn Mendes at iHeartRadio Music Festival 2015: The Biggest Lesson Taylor ... - Billboard

BillboardShawn Mendes at iHeartRadio Music Festival 2015: The Biggest Lesson Taylor ...BillboardThe singer-songwriter -- who's been opening on select dates of Taylor Swift's 1989 tour -- spoke to Billboard backstage at the 2015 iHeartRadio Music Festival, where he performed “Stitches” onstage with Hailee Steinfeld on Saturday, Sept. 19.and more »