Ora flew into Las Vegas for the awards show after seeing the legendary singer perform in London, and she wanted to pay her a tribute.
Let it be known: Beyoncé may be queen, Drake may have broken Adele's record for the most Billboard awards in a single year, Nicki Minaj may have given a nine-minute medley, and BTS may have made us believe in boy bands again, but when it came to bringing the house down, there is no one-no one- quite like Cher.
Drake was a high roller in Las Vegas, beating Adele's record for most wins at the Billboard Music Awards.
Drake is cleaning house at the 2017 Billboard Music Awards, picking up 12 honors before the show was half over. "It's going to be hard to top that moment", the American hip hop artist said after the performance while Hudgens said she was "crying".
Rock fans were stunned to learn about the death of rocker Chris Cornell, who was found dead Thursday in his hotel room in Detroit.
Hosts Ludacris, left, and Vanessa Hudgens speak at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. Dion began her powerful number from behind a larger-than-life crystal chandelier.
Later on she showed up in one of Cher's iconic stage costumes and danced along to Cher's performance from the audience. Even Alex and Drew had to give him props on the night.
Canadian singer Celine Dion delivered an emotional performance of her award-winning song My Heart Will Go On from the soundtrack of the movie Titanic to mark 20 years since its release.
A flattered Celine tried to play down the idea, saying, "Oh, I don't know", before introducing the rapper to her 16-year-old son, Rene-Charles Angelil. Ed Sheeran performed "Castle on the Hill" from Santiago, Chile, while Lorde sang her upbeat song "Green Light".
But the singer, who is engaged to Liam Hemsworth, couldn't hide her emotion by the end when her eyes teared up.