Billie Eilish surprised Coachella Weekend 2 attendees with Hayley Williams on Saturday night for a rare performance of Paramore’s 2007 hit “Misery Business.”

Williams’ appearance came after Eilish and her brother Finneas played “Your Power” from her most recent album, with the siblings duetting on acoustic guitar. 

There was a pause after the song ended, in which anticipation filled the air and Eilish took a seat on a stool to introduce her guest.

“Oh, look! An empty seat. Who’s that for?” Eilish said with a mischievous look. “Everybody, can we please welcome my friend Hayley Williams!”

Backed by Finneas and another guitar player, Williams and Eilish delivered an acoustic rendition of the pop-punk tune.

Eilish seemed overjoyed to have Williams as a guest, letting out an excited yelp when she walked onstage.

The two jumped and hugged as Williams addressed the crowd. “This is my first Coachella, whoa,” Williams said. “Thanks for sharing this with me. This is sick!”

Before they broke out in song, Eilish asked: “Hayley, wanna sing something?” To which Williams replied: “Yes, I’m better at singing than talking.”