Bonnaroo, the sweatiest festival of the summer, hits the hills of Tennessee this weekend. The annual four-day music fest, now in its 11th year, has been named one of the best in the country numerous times. Today, it kicks off with performances from almost every musician you might want to see, from Tom Petty and Kendrick Lamar to Cat Power. We made a mix of some of the hottest. Get ready to get down and dirty, y'all! For a full lineup, visit www.lineup.bonnaroo.com.