Originally released on 7 March 1983, the album peaked at No. 1 on the UK Albums Chart in its second week of release.
The best music festivals of 2019 cover everything from rootin’ tootin’ country music to ear-blasting rock and all-nighters in the heart of Europe.
Knight joins this year's other headline acts Lauryn Hill, Tears For Fears and Kylie Minogue.
The '80s pop icons will be supported by post-punk five-piece White Lies and chart-topping synth-pop outfit Scritti Politti.