"Yo Gabba Gabba! Live! There's A Party In My City" -- the traveling version of the Nick Jr. show, "Yo Gabba Gabba" -- comes to Milwaukee's Riverside Theater on Sunday, March 14 for live performances at 2 and 5 p.m. Christian Jacobs is the co-creator of the popular kids' television program, and his band, The Aquabats, is featured in the show.