Question:  Green on Red and Hollywood Undead are both what?
Context: Swan Songs is the debut album by Hollywood Undead, released through Octone Records and Polydor Records.  The album was released on September 2, 2008.  "Everywhere I Go" was the first single to be released, it was a web single and was available for download only on iTunes.  The band released four music videos for four songs on the album, "No.5", "Undead", "Young", and "Everywhere I Go" When purchased through Amazon.com and at some other retailers, the album includes a bonus track and an option to unlock music videos.  "Swan Songs" is the only studio album to feature vocalist Deuce, excluding the half-studio album "Desperate Measures". Hollywood Undead is an American rap rock band from Los Angeles, California, formed in 2005.  They released their debut album, "Swan Songs", on September 2, 2008, and their live CD/DVD "Desperate Measures", on November 10, 2009.  Their second studio album, "American Tragedy", was released April 5, 2011.  All of the band members use pseudonyms and wear their own unique mask, most of which are based on the common hockey goaltender design.  The band members currently consist of Charlie Scene, Danny, Funny Man, J-Dog, and Johnny 3 Tears.  Their third studio album, titled "Notes from the Underground", was released on January 8, 2013. American Tragedy Redux is the second remix album by American rap rock band Hollywood Undead, taking songs exclusively off the band's 2011 studio album, "American Tragedy", and remixing them.  The first remix album was the Black Dahlia Remixes album, featuring three remixes of Hollywood Undead's single, "Black Dahlia".  The album was released on November 21, 2011 by A&M/Octone Records.  The original tracks on the album, which were on "American Tragedy", were recorded following the induction of Daniel Murillo into the band in early 2010 and lasted until December.  The tracks were then remixed by various DJ's and musicians during the band's "World War III Tour" with Asking Alexandria later in 2011.  The album's first single, "Levitate (Digital Dog club mix)", was released on October 18, 2011, with a music video being released on October 24. Green on Red was an American rock band, formed in the Tucson, Arizona punk scene, but based for most of its career in Los Angeles, California, where it was loosely associated with the Paisley Underground.  Earlier records have the wide-screen psychedelic sound of first-wave desert rock, while later releases tended more towards traditional country rock. "Levitate (Digital Dog club mix)" is a song by American rock group Hollywood Undead and was released as the lead single from their first remix album, "American Tragedy Redux".  It is the first song on the official track list and was added to rock radio formats on October 18, 2011.  The song "Levitate" was originally featured on Hollywood Undead's latest studio album American Tragedy (album) but was not featured as a single.  The remix of the song (the first version to actually be released as a single) was heavily promoted over the band's Facebook page, where its official video debuted.  A rock version of "Levitate" was also released onto iTunes as a single on Nine Lives is the debut studio album by former Hollywood Undead frontman Deuce.  The album was released on April 24, 2012 through 10th Street Entertainment.  The album uses both new songs, remake versions, and demo songs recorded following Deuce's departure from Hollywood Undead in early 2010. "Bullet" is a song by American rap rock group Hollywood Undead, recorded as the eleventh track from their second studio album "American Tragedy" (2011).  The song was produced by Griffin Boice.  This song is the one of the few songs by Hollywood Undead to feature a member other than Danny or Deuce as the clean vocalist.  Charlie Scene performs the chorus of "Bullet," in addition to "Rain" from Notes from the Underground.  The song has received positive reviews from critics due to its cheerful tone and uptempo beat that directly contrast its dark lyrics about suicide and self-harm. Ben Grosse is an American record producer and mixer, known for his signature sound involving metal and hard rock music.  Grosse has mixed and produced numerous albums for popular artists such as Marilyn Manson, Sevendust, Disturbed, Breaking Benjamin, Filter, Fuel, Depeche Mode, Richard Barone, Alter Bridge, Red, Vertical Horizon, Love and Death, Hollywood Undead, Ben Folds, Thirty Seconds to Mars, Underoath and many others.  As the mixer for many well-known songs from artists like Red Hot Chili Peppers ("Higher Ground"), Republica ("Ready to Go" ), Third Eye Blind ("Graduate" from the "Can't Hardly Wait" soundtrack), and The Flaming Lips ("She Don't Use Jelly"), he currently works with a staff at his own studio, The Mix Room, in Burbank, California. "Undead" is a song by American rap rock band Hollywood Undead, the first track and second single from their debut full-length album, "Swan Songs". Jay Orpin (born April 29, 1976 in Stockholm, Sweden ) is a Swedish and Finnish songwriter and producer.  He also writes songs and produced for Backstreet Boys, NSYNC, Robyn, Ace of Base, Bon Jovi, 2gether and Britney Spears, and later he produced songs for Good Charlotte, Sum 41, Simple Plan, Hawthorne Heights, Red Jumpsuit Apparatus, My Chemical Romance, Tokio Hotel, Lindsay Lohan, Dashboard Confessional, All American Rejects, Fall Out Boy, AFI, Evanescence, Hollywood Undead, t.A.T.u., Yellowcard, Hannah Montana, Linkin Park, Bullet for My Valentine and Taking Back Sunday.  Most of his music is under the influence of today's modern pop punk, dance-punk, and emo music, but he does write some pop and hip-hop music as well.  He also teamed up with Travis Barker in 2007, remixing popular hip-hop singles such as Throw Some D's, Party Like a Rockstar, and Crank That Soulja Boy.  Even though he has written some of the works of some of the aforementioned artists, he is not one of the main producers of many of these artists and he chooses not to put his credit for his work.  An original song written by such composer to be cited is yet to be found, however some has claimed an abbreviation of his name in one of the albums.  In late 2008, he has decided to move in a small town near Oulu, Finland to raise his family and is a high school teacher and does accounting for bill paying in the summer to support the family, along with music production projects part-time, but he still continues to produce music today, but not as much as he used to.  He did come back to help write a few new songs, such as In My Head by Jason Derulo.  He has quit his part-time job in accounting to allow more time back in the music production business, to make a revival.
Answer: rock band