Pearl Jam drummer Matt Cameron missed the band's show in Oakland Thursday after testing positive for COVID-19.
Frontman Eddie Vedder explained Cameron's absence ahead of a performance of the song "Why Go," proclaiming that the drummer is a "true artist and...a force of nature."
Vedder then added, "However, even his superhero status could not prevent him from testing positive [for COVID-19]."
With Cameron sidelined, Pearl Jam recruited a pair of guest drummers to fill in for him: ex-Red Hot Chili Peppers guitarist Josh Klinghoffer, who joined PJ last year as a multi-instrumentalist touring member, and Richard Stuverud, who's previously collaborated with bassist Jeff Ament.
For the night's closing song, Vedder invited a fan named Josh Arroyo to play drums on "Yellow Ledbetter."
A post-show photo of the set list revealed which drummer played on which song.
Pearl Jam's tour is set to continue Friday with another show in Oakland.