The Billboard Music Awards are tonight at 8pm on NBC. Performers include Taylor Swift & Brendon Urie, Ariana Grande, Paula Abdul, Ciara, Halsey, Dan + Shay, Tori Kelly, Madonna & Maluma. Jonas Brothers, BTS & Halsey, Mariah Carey, Kelly Clarkson (also hosting), Panic! At the Disco, Khalid, Lauren Daigle.