Photos:: Billboard Music Awards 2016 | Red carpet and highlights

Madonna performs a tribute to Prince during the 2016 Billboard Music Awards at T-Mobile Arena.

Stevie Wonder and Madonna perform a tribute to Prince.

Musician/TV personality Questlove speaks about Prince.

Rihanna accepts the Billboard Chart Achievement Award.

Ariana Grande performs with dancers watching.

Ariana Grande performs.

Celine Dion performs “The Show Must Go On.”

Blake Shelton and Gwen Stefani perform “Go Ahead and Break My Heart” at the Billboard Music Awards.

Recording artist Rihanna performs onstage.

Demi Lovato performs “Cool For The Summer” at the Billboard Music Awards.

Justin Bieber accepts the award for top male artist.

Recording artists Zendaya and Wiz Khalifa speak onstage.

Ben Folds, left, and Kesha perform “It Ain’t Me Babe” at the Billboard Music Awards.

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Joe Jonas of DNCE performs during the 2016 Billboard Music Awards.

JinJoo Lee, left, Joe Jonas and Cole Whittle of DNCE perform “Cake by the Ocean” at the Billboard Music Awards.

Actress Kate Beckinsale

Kesha, left, Steven Tyler and Megan Trainor at the Billboard Music Awards.

Co-hosts Ciara and Ludacris speak onstage during the 2016 Billboard Music Awards.

Meghan Trainor performs “No” at the Billboard Music Awards at the T-Mobile Arena in Las Vegas.

Ally Brooke, left, Dinah-Jane Hansen, Camila Cabello, Lauren Jauregui and Normani Hamilton of Fifth Harmony.

Justin Bieber and producer Skrillex have been sued over the hook for their single “Sorry.”  (Kevin Winter / Getty Images)

Recording artist Pink.

Singer Pink, suspended in the air as she often is in her performances, performs onstage during the 2016 Billboard Music Awards at T-Mobile Arena.

Recording artist Britney Spears opens the 2016 Billboard Music Awards at T-Mobile Arena in Las Vegas.

Britney Spears brings a cadre of dancers onstage at th Billboard Music Awards.

Wiz Khalifa accepts the award for top 100 song for “See You Again” at the Billboard Music Awards at the T-Mobile Arena.

Recording artist Shawn Mendes performs onstage.

Priyaka Chopra, co-hosts Ludacris and Ciara, and Laverne Cox

Actresses Kristen Bell, Kathryn Hahn and Mila Kunis attend the 2016 Billboard Music Awards.

Rihanna, Nick Jonas and Ariana Grande.

Singer Britney Spears attends the 2016 Billboard Music Awards at the T-Mobile Arena in Las Vegas.

Seal arrives at the Billboard Music Awards at the T-Mobile Arena.

Recording artists Abby Travis, left, Gina Schock, Belinda Carlisle, Jane Wiedlin and Charlotte Caffey of music group the Go-Go’s.

Singer-songwriter Rachel Platten, left pre-show co-host Laura Marano and TV personality Sibley Scoles.

Ally Brooke,left, Normani Hamilton, Dinah-Jane Hansen, Lauren Jauregui and Camila Cabello of Fifth Harmony arrive at the Billboard Music Awards.

Halsey

Pre-show co-host AJ Gibson.

Recording artists Jack Lawless, left, JinJoo Lee, Joe Jonas and Cole Whittle of music group DNCE attend the 2016 Billboard Music Awards.

Actress Liz Hernandez attends the 2016 Billboard Music Awards at T-Mobile Arena.