Get ready for a season of music in the sun or under the stars This year marks the 20th anniversary of Rockfest, the biggest outdoor festival in Kansas City and one of the biggest in the nation. It won’t be the first outdoor show of the season; Crossroads KC has already had two. But it is the first big outdoor show of the year, and there are plenty more to follow. Tue, 08 May 2012 14:06:39 -0700