Shawn Mendes covers 'Treat You Better' with classroom instruments

9:47pm PDT - October 8th, 2018    backstreet boys - Mashable

Jimmy Fallon's classroom instrument covers are the stuff of legend, with the likes of the Backstreet Boys and Ed Sheeran giving those mini-xylophones a good tapping. Joining the fray on Monday night was Shawn Mendes, whose 2016 hit "Treat You Better" just had…