Check out the 2013 Ballislife All American Dunk contest presented by Muscle Milk one of the craziest dunk contests EVER. All the guys performed some impressive dunks but Zach LaVine stole the show with impressive dunk after impressive dunk. The best part of the entire contest was the fact that most of these dunks were done on the first try. The dunk contest was judged by rappers Problem & Mucho Dinero as well as the best dunker in the world Kenny Dobbs and one of the top high school basketball players in the world Stanley Johnson.