Jamie Lynn Spears has been spending a lot of time rehearsing lately, as she readies for her big tour.  It includes a stop at the CMA Music Festival this weekend, and the Taste of Country Music Festival and Country Jam USA in the next few weeks.  Four weeks from tonight, the show comes to downtown Cedar Rapids, and is sure to put some extra 'boom' into the 4th of July night.  It all happens at the McGrath Amphitheatre in downtown Cedar Rapids; the third night of McGrath Music on the River!  Stop by & get your tickets today at the U.S. Cellular Center Box office and we'll see you for all the music, pageantry, and fireworks on the 4th of July.