Earth, Wind & Fire canceled their concert in San Francisco on Thursday due to a medical emergency affecting one of the band members. The group announced this change shortly before the planned performance at the Chase Center.

A statement on the band’s social media said, “We are unable to perform as scheduled tonight at Chase Center in San Francisco due to a medical emergency involving a member of our band. As a result, tonight’s show with Lionel Richie will be rescheduled, with a new date to be announced soon.”

Fans who purchased tickets should keep them, as they will be valid for the rescheduled date. Those who prefer refunds can obtain them at the point of purchase. The band expressed regret for the unexpected change and thanked everyone for their understanding.

Additional details about the medical emergency have not been disclosed. Key members of the band, including Philip Bailey, Lionel Richie, Ralph Johnson, and Verdine White, were preparing for the performance, according to reports.

Earth, Wind & Fire joined Lionel Richie for the Sing A Song All Night Long Tour starting in June, with performances across North America, including Canada. They had recently begun their California leg of the tour.

The band was formed by Maurice White in Chicago around 1969. Key members over the years have included Maurice’s brother Verdine White, Philip Bailey, Ralph Johnson, Larry Dunn, Al McKay, Fred White, and Andrew Woolfolk. Earth, Wind & Fire is known for a unique sound combining funk, R&B, soul, jazz, gospel, rock, and pop. Popular songs by the group include “September,” “Shining Star,” “Let’s Groove,” “Boogie Wonderland,” and “After the Love Has Gone.”