There will also be broadcasts of live concerts from historic houses, and the BBCConcertOrchestra is to perform a night of contemporary Baroque remixes.
Kylie leads the lineup in London's Hyde Park this year, joined by English tenor Alfie Boe, operatic pop group Il Divo, the London Community Gospel Choir and the BBCConcertOrchestra.
To mark the 30th anniversary of Saturday Night Fever topping the charts in the UK, Robin Gibb will also perform alongside Sam Sparro and Sharleen Spiteri with the BBCConcertOrchestra in London's Roundhouse on October 25.