A while back we learned that TIM MCGRAW was the Top-Selling Country Artist of the Decade. (--He sold 24.8 million copies from January 1st, 2000 to December 31st, 2009. TOBY KEITH came in second, selling 24.5 million units.)
So it only makes sense that he was also the MOST PLAYED country artist of the decade. According to Nielsen, Tim McGraw had 7,965,000 radio spins in the decade, which was, of course, more than any artist. No word who came in second.