CityWalk's 5 Towers concert series to showcase emerging acts

'American Idol' winner Lee DeWyze, Nickelodeon stars among headliners for the free concert series that kicks off March 22.“American Idol” winner Lee DeWyze, Nickelodeon stars Leon Thomas III and Cody Longo are among the acts that will headline Universal CityWalk’s concert series, the entertainment complex announced earlier this week.