Jeff Lynne's Electric Light Orchestra (ELO) will no longer be performing at the BST Hyde Park festival - the band's swansong show - in London, organisers have said.
Musician Lynne, who was due to headline on Sunday, has pulled out on the advice of doctors following a "systemic infection".
A statement said: "Jeff Lynne is heartbroken to report that he will not be able to perform at tomorrow's BST Hyde Park show.
"Jeff has been battling a systemic infection and is currently in the care of a team of doctors who have advised him that performing is simply not possible at this time nor will he be able to reschedule.
"The legacy of the band and his longtime fans are foremost in Jeff's mind today - and while he is so sorry that he cannot perform, he knows that he must focus on his health and rehabilitation at this time."
A statement from organisers said: "Following the news that Jeff Lynne's ELO will not be able to perform at BST Hyde Park due to medical reasons, Sunday 13 July's event will sadly be cancelled.
"Ticket holders will be refunded and contacted directly by their ticket agent with further details."
The news comes after Lynne's band, best known for their hit song Mr Blue Sky, pulled out of a performance at Manchester's Co-Op Live, which was due to take place on 10 July.
Electric Light Orchestra (ELO) formed in Birmingham in 1970 with Lynne, multi-instrumentalist Roy Wood, and drummer Bev Bevan the founding members.
ELO's other hits include Livin' Thing, Telephone Line, and Evil Woman.
They are known for fusing classical music, Beatles-style pop, and futuristic rock visuals.
ELO first split in 1986.
Singer, multi-instrumentalist, and record producer Lynne resurrected the band in 2014 and released the album From Out of Nowhere in 2019.
ELO were inducted into the Rock and Roll Hall of Fame in 2017.
Source: Press Association
