Justin Bieber was one of the many musical guests to make a surprise appearance at Ultra Music Festival, where he joined Skrillex and Diplo onstage during their headlining slot.
The 2014 Lollapalooza lineup has been revealed and boy, is it good! Eminem will headline the annual (and formerly traveling) event, set for Aug. 1 through Aug. 3 at Grant Park in Chicago, as will Outkast, Kings of Leon and Skrillex.
Diverse acts such as Eminem, Kings of Leon and Skrillex are set to headline the upcoming Lollapalooza music festival. Though the official lineup won't be announced until next week, sources have confirmed that the three acts (all Lollapalooza vets) will once again take the stage.
EDM is where it's at on New Year's Eve this year. Skrillex, Calvin Harris, Afrojack, Avicii and Moby are among the electronic artists ringing in 2013 with live performances across the country.