Both outfits were classic Cher, including the one she sported during "If I Could Turn Back Time".
Celine Dion also took to the stage wearing a dramatic, structural gown, to perform an emotional rendition of her single My Heart Will Go On, the Oscar-winning song from the 1997 blockbuster Titanic, which celebrates its 20th anniversary this year.
When Gwen Stefani took the stage to present Cher with the prestigious Billboard Music Awards Icon Award for 2017, she was succinct in three very important areas. You can look to Cher's performances of "Believe" and "Turn Back Time" as evidence.
The singer, who first found fame as part of Sonny & Cher in the 1960s, still hits the road touring, but Sunday's showcase was her first in an awards show in 15 years. "That is not an applause thing; I'm 71 yesterday!" she told the crowd.
"We still can not believe that we're standing here on this stage at the Billboard Music Awards", said BTS member Kim Nam-joon, to the screams of fans.
There were also performances from Nicki Minaj, Bruno Mars, Lorde, The Chainsmokers, Camila Cabello, John Legend, Miley Cyrus, Imagine Dragons and country music stars Florida Georgia Line and Sam Hunt plus Selena Gomez songwriter Julia Michaels.
But Cher was not done impressing the socks off us: her acceptance speech for the Icon Award was amusing and full of charm.
"I've been doing it for 53 years. But you're going to be special", Cher said in her speech.
EMELI Sande has spoken out about her recovery following her divorce from her husband after just a year of marriage.
Drake nabbed a record 13 trophies at the Billboard Music Awards Sunday (May 21) night. "And there was really nothing about me that led anyone [else] to believe that I was going to be special".
"And I asked them why, and their response was, 'I don't want to look thirsty and you get enough love as it is.' It made me think".