The 'Billboard Icon' delivered a soaring rendition of Queen's 'The Show Must Go On' during the awards show.
The 28-year-old singer also took home the award for Top Artist.
The 'Billboard Icon' opened up to ET's Cameron Mathison backstage about the new chapter in her life since her late husband's passing.
Sunday's performance was briefly suspended by Dr. Luke's label, Kemosabe Records.
'You can't control everything.'
After Madonna (and Stevie Wonder)'s memorial to the music icon, the BET Awards came out swinging with an ad for its own upcoming tribute.
The pop diva sang "Nothing Compares 2U" and "Purple Rain" during the Billboard Music Awards.
It was a performance that almost didn't happen.
Former 'Hills' alums Heidi Montag, Spencer Pratt and Frankie Delgado all attended.
Trainor also dished to ET's Katie Krause about her day at Disneyland with Brooklyn Beckham and Chloe Grace Moretz.
The celebrated singer delivered her first televised performance since her husband's death on Sunday: a beautiful rendition of 'The Show Must Go On.'
The couple sang their hit "Go Ahead and Break My Heart" off Blake's new album.
Bruno Mars wants to get back to work, work, work, work, work.
The 'Sorry' singer brought some high-octane stage presence to Sunday's BBMAs and drove the audience wild.