Hip-hop Superstar Big Boi has been added to Bumbershoot 2011 music lineup! As one half of Outkast, Big Boi became a household name in hip-hop; and as a solo artist he’s established himself as a top rapper and highly sought out producer. On the flip-side, young rapper Kendrick Lamar is still on the rise and will seek to expand his growing legion of fans while opening for Big Boi on Monday afternoon. Also added on Monday are melodic indie-rockers, Eisely; pop rock trio, Dom; local folk rockers, Motopony; and local electro-soul duo Fly Moon Royalty. With these additions, the Bumbershoot music lineup expands to an amazing 123 acts. That’s about 20 more that last year and is sure to provide something for every taste. Check out our complete lineup of music artists by day.