Stevie Nicks had to cancel her concert Saturday night (June 15) at Hersheypark Stadium in Hershey, Pennsylvania, a statement citing “illness in the band” said on the singer’s official social media accounts.

“Regrettably, due to illness in the band, tonight’s performance is being postponed. Please hold on to your tickets. A new date will be announced soon,” said the update, originally posted by the stadium at 5:30 p.m. ET. The update was later added to Nicks’ stories on Instagram and Facebook, and shared on her page on X (formerly Twitter).

Billboard reached out to Nicks’ representatives for comment on Sunday. At press time, no further details or updates have been provided.

The rock icon and vocalist for Fleetwood Mac, 76, was expected to take the stage Saturday night at the latest stop on her ongoing Live in Concert Tour across the U.S.

Nicks’ performance was postponed just hours before showtime.

In posts on social media, fans reported the concert was canceled around the time doors were set to open, when they were already in line to enter the concert grounds. A video posted by a concertgoer in the comments of the announcement indicated soundcheck happened Saturday afternoon.

As of Sunday (June 16), Nicks’ published schedule has her performing on June 18 in Grand Rapids and June 21 in Chicago. What follows is a short break in her itinerary until July 3, when she’s set to jet to Europe for a gig in Dublin, Ireland. U.K. dates come next (Glasgow, Manchester and London), and then stops in Antwerp, Belgium, and Amsterdam, the Netherlands.

Last weekend Billboard saw Nicks and her touring band put on a lively show at Mohegan Sun Arena in Uncasville, Connecticut, with a 15-song setlist spanning solo hits and classics from Fleetwood Mac’s discography, complemented with plenty of career anecdotes told in between songs. “My stories are starting to become as long as the show,” she joked at the June 9 show.

After opening with Bella Donna‘s “Outside the Rain” and playing the Billboard Hot 100 No. 1 “Dreams,” from Fleetwood Mac’s Rumours, Nicks was in good spirits, telling the cheering crowd, “We’re very glad to be here. We got to fly in on a helicopter. It was truly magnificent.”