A statement issued by Osbourne’s people simply said the cancellation is “due to health reasons. Many apologies to all concerned.”

The notice of the canceled shows came just after Osbourne opened for Robbie Williams’ record three-night run at Knebworth Park. She also stuck around for his Dublin show before pulling out of her other engagements, which included stops at Edinburgh’s Fringe, the V2003 Festivals, and various other festival appearances in and around the U.K. and Europe.

Three shows with Ozzy were also on the books for the start of September – and they weren’t small gigs either. All were at big arenas in England and included a two-night stand in the Osbourne’s hometown of Birmingham.