Daniel “Danny Boy” O'Connor formed multiplatinum hip-hop group House Of Pain with his high-school buddy, Everlast. In addition to rapping and doing the hype-man thing, Danny Boy was instrumental behind the scenes in creating the group’s iconic logo and related imagery. He’s appeared on tracks with Powerman 5000, Danny Diablo, Slaine, and others; cofounded La Coka Nostra and the short-lived X-Supermodels; and contributes to the culture with Delta Bravo Urban Exploration Team. (Not to be confused with Death Row affiliate Danny Boy.)