Ticketed – iHeartRadio has announced the lineup for the 2019 Wango Tango, presented by the JUVÉDERM Collection of Dermal Fillers show in Los Angeles Hosted by Ryan Seacrest with Taylor Swift, Jonas Brothers, Halsey, 5 Seconds Of Summer, Zedd, Ally Brooke with Special Guest Tyga, Ava Max, FLETCHER, TOMORROW X TOGETHER & More.