Crazy Town singer Shifty Shellshock, who made the enduring rap-rock hit “Butterfly,” has died. He was 49. Los Angeles County Medical Examiner records show Shellshock, a.k.a. Seth Binzer, died at home on June 24, with no cause disclosed. Shellshock first formed a rap-rock band called the Brimstone Sluggers with then-producer Bret “Epic” Mazur in the mid-1990s; will.i.am introduced the pair during a recording session for his early group Atban Klann. Brimstone Sluggers...