Olivia Rodrigo performs 'Hot to Go!’ with Chappell Roan in 'Guts' show in Los Angeles

Olivia Rodrigo just had a surprise performance with Chappell Roan to cap off her “Guts” tour in the United States.

On TikTok, the “Vampire” hitmaker shared a short clip of her and Chappell performing a duet of the latter’s hit song “Hot to Go” onstage.

In the 21-second clip, Chappell and Olivia can be seen doing some of the steps of the song as they entertain the crowd with their performance.

“Ily,” Olivia simply wrote and tagged Chappell's TikTok account.

Meanwhile, fans in the comments section can’t help but gush over the two musicians' moment onstage.

“CHAPPELL ROAN AND OLIVIA RODRIGO TOGETHER? MY LIFE IS COMPLETE,” a fan said.

“MY TWO FAVES JOINING IN THEIR MAXIMUM SLAY,” another fan wrote.

Olivia is currently in the middle of her "Guts World Tour," which has already spanned more than fifty cities across the United States and Europe.

After her U.S. tour, the singer-songwriter will be embarking on the Asian leg of her tour, which will run from September to October this year. Her Asian tour will kick off at the Impact Arena in Bangkok, Thailand on September 15.

Olivia will also be visiting Seoul, Hong Kong, Tokyo, and Singapore, as well as Melbourne and Sydney in Australia. The Filipino-American singer also teased a possible Manila stop.

Olivia’s “Guts” tour is in support of her second studio album of the same name, which she released in September 2023. The album includes the singles “Vampire,” “Bad Idea Right?” and “Get Him Back!”

The deluxe album, “GUTS (spilled),” came out in March.

Olivia also released a song for the film, “The Hunger Games: The Ballad of Songbirds & Snakes” called “Can’t Catch Me Now.”

Meanwhile, Chappell has been gaining a lot of attention with "Good Luck, Babe!," released in April this year. She has been dropping singles since 2017 and released her debut album, "The Rise and Fall of a Midwest Princess," in 2023.

@livbedumb ily @chappell roan ? original sound - Olivia Rodrigo

— Jade Veronique Yap/CDC, GMA Integrated News