Jeff Lynne, 77, has canceled what was expected to be Electric Light Orchestra's final live show as he battles a systemic infection.

Jeff Lynne’s ELO canceled its July 13 performance at BST Hyde Park in London early Saturday morning after doctors advised frontman and band co-founder Lynne, who is currently “battling a systemic infection,

The cancellation brings an unexpected end to a tour that was meant to close the chapter on Lynne’s five-decade career. He had first returned to live touring with a comeback show at Hyde Park in 2014 and had described this weekend’s gig as the perfect way to say goodbye.