Earlier in the evening, Carter shared a selfie of her outfit and makeupon Instagram— crediting her glam squad, James Kaliardos and Bob Recine, for the look.

(L-R) Kaitlynn Carter and Miley Cyrus.DIGGZY/SplashNews.com

Miley Cyrus,Kaitlynn Carter

Carter, 30, joined the singer andsupported her backstageahead of her performance.

DIGGZY/SplashNews.com

Miley Cyrus,Kaitlynn Carter

The 26-year-old put on a passionate, yet the chilling performance of the heartbreaking single, changing some of the words, in what was her first public appearance since her split fromLiam Hemsworth.

Jamie McCarthy/VMN19/Getty

Miley Cyrus

Earlier this month, a rep for Cyrus and Hemsworth confirmed the couple’s split, which cameafter less than one year of marriage.

The reality show couple wed in 2018 inan exclusive ceremonyat the Nihi Sumba Resort on the island of Sumba, off the coast of Indonesia.

RELATED VIDEO: Miley Cyrus ‘Isn’t Trying to Hurt’ Liam Hemsworth but Needs to ‘Focus on Herself’: Sources

Since Cyrus and Carter’s return from Italy, asource told PEOPLE that the newly single ladies are “staying together” in Los Angeles.

“Miley is very close with Kaitlynn. It’s romantic, but also a friendship,” the insider said. “They are both going through similar stuff right now and are bonding over it.”

Hemsworth, 29,filed for divorce on Wednesday, Aug. 21, citing “irreconcilable differences.”

A week before filing, Hemsworthbroke his silenceon Instagram, posting a photo of a sunset with the caption: “Just a quick note to say that Miley and I have recently separated and I wish her nothing but health and happiness going forward.”

source: people.com