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.

The band currently consists of five members: J-Dog, Funny Man, Johnny 3 Tears, Charlie Scene, and Danny.

[7] The band originated on June 3, 2005, as The Kids[8] 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,[9] 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.

Ragan and Busek later cited arguments over writing credits, and Deuce not wanting to tour, as reasons for the departure.

[22] Decker and Terrell also stated that Deuce wanting to bring his own personal assistant for touring caused a rift between members.

[23][24] The band asked long-time friend, and lead singer of Lorene Drive, Daniel Murillo, to fill in for Deuce's role.

[25] Murillo had just advanced past the auditions for season 9 of American Idol, but decided to drop out to join the band.

[26] The band soon began writing material for their second studio album, American Tragedy,[27] in mid-2010, with hopes to release it by the end of the year.

[28] The band co-headlined the Nightmare After Christmas Tour with Avenged Sevenfold and Stone Sour to support the album.

American Tragedy turned out to be more successful than their first album Swan Songs, selling 66,915 in its debut week and peaking at No.

They will then headline the Endless Summer Tour with All That Remains and Hyro da Hero, which took place between July 18 and August 7, 2011.

In the same month, the band set out on the "World War III" tour, with Asking Alexandria, We Came As Romans, Borgore, and D.R.U.G.S.

On April 12, 2014, Johnny 3 Tears posted a photo on his Instagram revealing plans for the band to release a new album in the summer.

[45] On October 17, Hollywood Undead's Vevo channel leaked the audio video with a song from their new album titled "Day of the Dead," although it was removed shortly afterwards.

[48] On November 3, 2015, Johnny 3 Tears announced during an interview with Louder Noise that the band planned to release an EP of previously unreleased songs for free in the holiday season.

[citation needed] The track was released officially on July 24, as the lead single off their upcoming album Five (stylized as V).

[51] On October 10, founding member Da Kurlzz "amicably" parted ways with the group to "pursue his own interests".

whilst the band were at Reading Festival 2018, J-Dog and Danny confirmed that they intend to release a "heavy" song they've recorded called "Bloody Nose".

"[62] In an interview with Silverstein vocalist Shane Told on his Lead Singer Syndrome podcast show, members Danny Murillo and Jorel "J-Dog" Decker confirmed that Benji Madden of Good Charlotte, Kellin Quinn of Sleeping with Sirens, and rapper Killstation would feature on New Empire, Vol.

[64] On July 31, the band released the first single titled "Idol" featuring Tech N9ne from the unannounced official follow-up to New Empire, Vol.

[67] On October 16, 2020, the band released the third single and remix version of the song "Heart of a Champion" featuring Jacoby Shaddix of Papa Roach and Spencer Charnas of Ice Nine Kills along with an accompanying music video.

[74] On April 25, the band published the seventh single "House of Mirrors" featuring Jelly Roll along with a music video.

[78] The Brag wrote, "Though the rock half of the band sounds pretty pop-punk, their aesthetic and subject matter is straight horrorcore.

I tried to sum up their sound to a friend by calling it 'Good Charlotte fronted by Insane Clown Posse' [...] They rap-sing about murder, suicide, the apocalypse and chloroform while wearing masks like hockey-playing killers or Mexican wrestlers.

[76] In a 2020 interview, he said that he considers Hollywood Undead to be an industrial hip hop group, describing their sound as "an amalgamation of Nine Inch Nails and the Beastie Boys".

[81] Funny Man cites 1990s hip-hop artists such as N.W.A, Wu-Tang Clan, and Snoop Dogg as some of the band's influences, while Johnny 3 Tears cites Tom Petty, John Fogerty, John Lennon, and Paul McCartney as some of his personal influences.