The band only took one year working on their debut album, Swan Songs. In an interview with Shave magazine, J-Dog explained that when forming the band 'Whoever was in the room at the time and played an instrument was in the band.' Phillips later left the group because of conflict with Erlichman. The band originated on June 3, 2005, as The Kids from a song titled 'Hollywood' (Later released as 'The Kids') that Jorel Decker (J-Dog), Aron Erlichman (Deuce), and Jeff Phillips (Shady Jeff) posted on the band's MySpace profile to positive reviews, leading them to form the group Hollywood Undead with their friends George 'Johnny 3 Tears' Ragan (formerly known as 'The Server'), Jordon 'Charlie Scene' Terrell, Dylan 'Funny Man' Alvarez, and Matthew 'Da Kurlzz' Busek. History Formation and Swan Songs (2005–2009) 1.2 Departure of Deuce and American Tragedy (2010–2011).

Their most recent album, Hotel Kalifornia, was released on August 12, 2022. Their sixth studio album, New Empire, Vol. The first single from the album, called 'California Dreaming', was made available July 24, 2017. Hollywood Undead's fifth record is titled Five (or V), and was released on October 27, 2017. Their fourth studio album, Day of the Dead, was released on March 31, 2015. Their third studio album, titled Notes from the Underground, was released on January 8, 2013. Their second studio album, American Tragedy, was released April 5, 2011. They released their debut album, Swan Songs, on September 2, 2008, and their live CD/DVD Desperate Measures, on November 10, 2009. The band members currently consist of J-Dog, Funny Man, Johnny 3 Tears, Charlie Scene, and Danny. All of the band members use pseudonyms and previously wore their own unique mask, most of which were based on the common hockey goaltender design. Hollywood Undead is an American rap rock band from Los Angeles, California, formed in 2005.

J dawgs albums