The 2016 Billboard Music Awards might be competing for air time with the closing ceremonies of the Cannes Film Festival, but the Las Vegas-based event is a whole different animal. Featuring performances by Madonna, Rihanna, Britney Spears, Justin Bieber, and a whole host of top pop stars, the event offers yet another red carpet challenge for musicians and actors putting in appearances — as if they weren’t already exhausted from the back-to-back run of the spring awards shows, between the Oscars, the Grammys, and the MTV Video Music and Movie Awards. Performers aside, the many Billboard Award finalists will also put their best (-dressed) foot forward in the T-Mobile A rena; The Weeknd leads the count, a finalist for 16 different categories, with Justin Bieber trailing behind in 11 different categories. Unlike other music awards, the Billboard Awards honor chart performance — it’s probably the only show where “Hot 100” is a category for the most serious contenders. (Though, of course, all awards shows do in some way take account of mass popularity.) And in order to match the shiny statues that await, the stars put on their Sunday best in hopes of hearing their names called up to the stage. Here, we’re rounding up the looks from all the biggest names throughout the night, including Britney Spears, Laverne Cox, and more.