Hollywood Undead is an American rap rock band from Los Angeles, California, formed in 2005. Known for their distinctive style, the members perform under pseudonyms and were originally recognized for wearing unique masks. The current lineup consists of J-Dog, Funny Man, Johnny 3 Tears, Charlie Scene, and Danny.

The band released their debut album, Swan Songs, on September 2, 2008, followed by a live CD/DVD titled Desperate Measures on November 10, 2009.

Famous for hits like "Young" and "Undead," they have built a large cult following and over 3.2 billion streams worldwide.