In just four years, Bonnaroo grossed about $50 million in ticket sales and drawing about 320,000 people cumulatively to rural Manchester, Tenn., since 2001. Read Ray Waddell's column.

In just four years, Bonnaroo grossed about $50 million in ticket sales and drawing about 320,000 people cumulatively to rural Manchester, Tenn., since 2001. Read Ray Waddell's column.