Trailer: Queen and Adam Lambert: Rock in Rio 2015

Thirty years after a classical concert at the Rock in Rio, perhaps the best known and celebrated in the history of the festival, Queen returned in 2015 to the main stage. Accompanied by US singer Adam Lambert, runner-up of "reality show" American Idol. The remaining members of Queen - guitarist Brian May and drummer Roger Taylor - played 23 songs over two hours to a warm audience.