Kylie Minogue will headline the BBC's Proms in the Park thing on September 8.
The 'gig' (billed as a "Last Night of the Proms spectacular") takes place in London's Hyde Park and also features performances from Alfie Boe, singing statues Il Divo and, of course, Björn Again.
"I’m delighted to be performing at one of the UK’s most outstanding nights of the musical calendar," Kylie told a press release, "and to sing in front of thousands of people whilst being accompanied by the legendary BBC Concert Orchestra in such a special year is truly a dream come true."
Probably leave the poppers at home for this one.