From Pennsylvania

From last.fm:

CKY (short for "Camp Kill Yourself") is a 4-piece rock band from West Chester, Pennsylvania, United States consisting of Daniel Davies (vocals, guitar), Chad I Ginsburg (guitar, vocals, bass), Jess Margera (drums), and Matty Janaitis (bass). Deron (former singer) and Chad both played bass on all 4 of their albums, but Matty will take over when they record their next album, and he has now taken over for their live shows. Read more about CKY on Last.fm.