“American Idol” contestant Olivia Ximines covered Billie Eilish’s “Bad Guy”.

Ximines performed from her living room the hit song with a more upbeat tempo, showing off her killer voice.

“What I loved about this performance is that I got to hear the quality of your voice even more,” judge Katy Perry said via video stream while dressed up as a bottle of hand sanitizer. “It was like getting to know another side of you.”

RELATED: Ryan Seacrest To Bring A Blast From The Past To Host ‘American Idol’ Live Shows From Home

Luke Bryan praised Ximines for “bringing the show.” Lionel Richie said that she has “every quality of a superstar.”

Host Ryan Seacrest asked the 16-year-old singer what it was like having to perform at home because of coronavirus restrictions; she noted it was “different” and she had to “pump [herself] up.”

RELATED: Final Top 20 ‘American Idol’ Contestant Is Revealed After Surprise Twist

“I know about pumping myself up,” Perry joked, referencing her outfit.