Ticketed - KIIS FM'S Wango Tango hosted by Ryan Seacrest, with performances by Ariana Grande, Shawn Mendes, Meghan Trainor, 5 Seconds of Summer, NF, Miguel, Janelle Monáe, Marshmello with a special guest performance by Logic, Backstreet Boys and Sabrina Carpenter at the all-new Banc of California Stadium in Los Angeles, adjacent to the LA Coliseum in Expo Park.