Rock photographer Ross Halfin captured this wide-angle view from the stage looking out over an estimated 1.6 million music fans at Tushino Airfield in Moscow on September 28, 1991. Taking place just months before the fall of the Soviet Union, the free Monsters of Rock concert featured historic, thunderous sets from Metallica, AC/DC, Pantera, and The Black Crowes. 🎸 When you look at the legendary rock and metal lineups of the early 1990s, which of those bands would you have been most excited to see live in front of a million people? 👇️