Sonny John Moore (born January 15, 1988), known professionally as Skrillex, is an American DJ, record producer, musician, singer and songwriter. Growing up in Northeast Los Angeles and in Northern California, he joined the American post-hardcore band From First to Last as the lead singer in 2004, and recorded two studio albums with the band (Dear Diary, My Teen Angst Has a Body Count, 2004, and Heroine, 2006) before leaving to pursue a solo career in 2007. He began his first tour as a solo artist in late 2007. After recruiting a new band lineup, Moore joined the Alternative Press Tour to support bands such as All Time Low and The Rocket Summer, and appeared on the cover of Alternative Press' annual "100 Bands You Need to Know" issue.