When was the concert where King of Rock was performed  held?
Live Aid Live Aid was a dual-venue benefit concert held on 13 July 1985, and an ongoing music-based fundraising initiative. The original event was organised by Bob Geldof and Midge Ure to raise funds for relief of the ongoing Ethiopian famine. Billed as the "global jukebox", the event was held simultaneously at Wembley Stadium in London, England, United Kingdom (attended by 72,000 people) and John F. Kennedy Stadium in Philadelphia, Pennsylvania, United States (attended by about 100,000 people).
Day on the Green Day on the Green was a recurring concert in Oakland, California, presented by promoter Bill Graham and his company Bill Graham Presents. Held at the Oakland Coliseum, these events began in 1973 and continued into the early 1990s. The last Day on the Green overseen by Graham took place the same month as his death in a helicopter crash in 1991. There was a series of Day on the Green shows the following year in the wake of Graham's death and there were other shows in 1994-97 at the Oakland Coliseum Stadium - namely U2, Pink Floyd, and the Rolling Stones - but these were not a "Day On The Green" by definition because they occurred at night and also because Graham had passed.