Hot 97 Sumer Jam is without a doubt one of the most exciting Summer concerts each year, and 2014’s bill is certainly stacked enough to uphold that reputation. Nas. 50. Nicki. The Roots. Wiz. And many, many more (complete lineup on next page). The whole things kicks off on the festival stage starting at 2:30 p.m., and you can stream all the action below.