Deadmau5 Hammarica.com electronic dance music magazine announces Deadmau5 to headline Ultra Music Festival 2013. More:HARDWELL RETURNS WITH A DOUBLE-DOSE OF SINGLES WITH…DreamHack Beyond & Razer host Martin Jensen for…ROGER SANCHEZ AND NIC FANCIULLI TO HEADLINE IBIZA…MULTI-TALENTED ITALIAN COLOMBIAN SENSATION MARTIN…DILLISTONE TEAMS UP WITH DANISH VOCALIST MEDINA ON…