Red Hot Chili Peppers were forced to cancel their Saturday performance at the annual KROQ Weenie Roast in Irvine, California at the last minute after Anthony Kiedis was hospitalized.

The singer was at the Irvine Meadows Amphitheatre when he began experiencing “Extreme stomach pain,” a KROQ rep told Billboard.

Kiedis was then transported from the venue to a nearby hospital.

“No one’s more disappointed than us that we couldn’t perform tonight. Sending love and a speedy recovery to my brother Anthony,” drummer Chad Smith tweeted late Saturday after the Chili Peppers nixed their gig.

Once Kiedis was taken to the hospital, Smith, Flea and guitarist Josh Klinghoffer came onstage at the event to explain to the crowd that they would not be performing as planned.

Red Hot Chili Peppers were recruited to headline the concert that also featured sets by Panic! at the Disco, Garbage, Cold War Kids, Fitz and the Tantrums, Empire of the Sun and Weezer, who performed an extended set to close out the Weenie Roast.

Blink-182 also staged a surprise set at the Los Angeles radio station’s annual celebration.

The band is next scheduled to perform May 17th at Burbank, California’s iHeartRadio Theater; the Chili Peppers have not yet commented on the fate of that concert.

Prior to Kiedis’ hospitalization, Flea and Smith sat down backstage with KROQ for an interview that delved into the Chili Peppers’ long history with the Weenie Roast as well as their upcoming LP The Getaway.

Anthony Kiedis