The annual Virgin Mobile FreeFest will return to Merriweather Post Pavilion this year, it was announced May 21. However, those are the only details released so far about the all-day free festival that featured the likes of Skrillex (pictured), Jack White and Nas in 2012 and the Black Keys, Deadmau5, and Patti Smith in 2011. With a pedigree like that, it's hard for us to even begin to guess who would be on this year's bill.
UPDATE: Guess no more -- the 2013 lineup is available by clicking here.
Photo by Josh Sisk