"I thought that we should continue doing this when the 50th anniversary came up," admits Mick Jagger of the plans to schedule the 2013 shows. "I kept hedging when people asked me, but I knew, the year before."

"Personally, I start preparing about two months before the tour starts," he continued. "So I have to up my fitness level, I have to start singing every day, doing practices and a bit of dancing. I practice in front of mirrors if I can, in a dance studio."