Alex Warren, BigXthaPlug, Conan Gray, Ed Sheeran, Jelly Roll, Jessie Murph, The Kid LAROI, Laufey, mgk, MONSTA X, Myles Smith, Nelly, Olivia Dean, Ravyn Lenae, Reneé Rapp, Shinedown, Zara Larsson and more lead all-star lineups in major cities across the U.S.