The Rolling Stones marked 50 years in business with a concert for 20-thousand fans at Londons 02 Arena on Sunday. Mick Jagger, 69, Keith Richards, 68, Ronnie Wood, 65 and Charlie Watts, 71, opened the set with "I Wanna Be Your Man", before launching into "Get Off of My Cloud". The ageing rockers were joined on stage by former members Bill Wyman and Mick Taylor – their first time playing together in more than 20 years. Most of the tickets for the gig had sold out within minutes, leading to a significant online market for tickets with prices way beyond face value. Online tickets ran into many hundreds of pounds (dollars), with one ticket listed at the ludicrous price of 37-thousand pounds (60-thousand US dollars). The Stones are playing again in London on Thursday before going to the US for a show in New York on 8 December and in Newark, New Jersey, on 13 and 15 December.