 Jerry Colangelo, longtime former owner of the Phoenix Suns and Arizona Diamondbacks, was one of the original investors.The facility, designed by Dan Meis of NBBJ, was designed to fill the need for performers that don't need a huge sports stadium, but are too large for the smaller, intimate venues.It opened in the spring of 2002 as part of the ongoing redevelopment efforts in Downtown Phoenix, and reached the 2 million mark in attendance in 2009.