A long-lost photo of Princess Diana and David Bowie, taken backstage at a 1987 Wembley concert, has finally been unearthed. However, the reason it stayed hidden for decades is even more ...

Never before seen pictures of Princess Diana and David Bowie have been discovered 40 years after they were taken. The images were 'buried' after photographer Denis O'Regan received a 'polite ...

Princess Diana Archive/Getty Princess Diana and David Bowie at Wembley Arena in London for the Concert of Hope on World AIDS Day on Dec. 2, 1993. Can't get enough of PEOPLE's Royals coverage?