Big Sean

Festival organizers Guerilla Union announced Thursday (July 11) new addition to the Rock The Bells 2013 line-up — Big Sean, A-Trak, Chief Keef, and IamSu!.

“We wanted to kick off our ten year anniversary campaign this summer with yet another talent announcement,” said G.U. president, Chang Weisberg. “Our fans are expecting an epic experience and we want to make sure to deliver more new music and more classic performances. Plus, this will give everyone something to look forward to until our final announcement next month. We’ll be revealing yet another handful of artists, including an additional headliner in all four cities.”

Big Sean will be added to the Washington D.C. and New York dates; A-Trak to the Los Angeles and D.C. dates; Chief Keef to the L.A., San Francisco, DC and NYC dates; and IamSu! is added to the L.A. and SF dates.

Rock The Bells Festival 2013 will kick off in San Bernardino, CA (Sept. 7-8), before moving through to other cities across the east and west coast: Mountain View, CA (Sept. 14-15), Washington, DC (Sept. 28-29), and Rutherford, NJ (Oct. 4-5). For more info, visit RockTheBells.net.