The main criticism of the Bumbershoot 2011 lineup has been the undebatable observation that there are few household names on the bill. Big Boi, a solo artist and the traveling half of hip-hop masters OutKast, brings more contemporary star power to the mix. He’ll be joined by Kendrick Lamar on the KeyArena mainstage on Monday, Sept. 5. Other new additions include Eisley, Dom, Motopony, and Fly Moon Royalty. That brings the total musical acts to 123, which Bumbershoot says is roughly 20 more acts than last year.Follow us on Facebook and Twitter.