That's disappointing and surprising. Diana Ross, one of his biggest idols, did an arena tour last year at the age of 78. Tina Turner, another huge idol of his, did her last arena tour at the age of 69. Not to mention the fact that Ru himself is only marginally younger than M, and still goes through the hassle of putting on tons of make up, corsets, wigs, high heels, etc, in the name of performance. The lack of self-awareness here is quite remarkable.