Watch Gaslamp Killer, Elliphant Create Frenetic Track on iPad in New Ad

Los Angeles hip-hop/electronic DJ-producer Gaslamp Killer wasn't thinking of endorsements, sponsorships or Grammy commercials five years ago when he began incorporating an iPad into his manic sets. "I had no idea there were people reporting back to whoever the hell at Apple," Gaslamp Killer tells Rolling Stone. "It came out of...