Question: Mindless Self Indulgence and Tappi Tíkarrass are both what?

full_context: Document 1: Debut (Björk album): Debut is the first international solo studio album by Icelandic recording artist Björk. The album was released in July 1993 on One Little Indian and Elektra Records, and was produced by Björk in collaboration with artist Nellee Hooper. Her first recording following the dissolution of her previous band the Sugarcubes, the album departed from the rock-oriented style of her previous work and instead drew on an eclectic variety of styles across electronic pop, house music, jazz and trip hop.
Document 2: On It: "On It" is a single by American electropunk band Mindless Self Indulgence, released in the U.S. on July 8, 2008. The single reached number 2 on the "Billboard" Hot 100 Singles Sales chart.
Document 3: Funk rock: Funk rock is a fusion genre that mixes elements of funk and rock. James Brown and others declared that Little Richard and his mid-1950s road band, The Upsetters, were the first to put the funk in the rock and roll beat, with a biographer stating that their music "spark[ed] the musical transition from fifties rock and roll to sixties funk".
Document 4: Digital hardcore: Digital hardcore is a music genre that fuses hardcore punk and industrial rock with electronic music such as hardcore techno, breakcore and drum and bass. It typically features fast tempos and aggressive sound samples. The style was pioneered by Alec Empire of the German band Atari Teenage Riot during the early 1990s, and often has sociological or far-left lyrical themes.
Document 5: Mind:state: Mind:state is an electronic music one man act from Sweden that popped up in the late 1990s. Influenced by electronic bands like Front 242, Assemblage 23, KMFDM and also a wide range of metal bands such as Tiamat and Darkseed, Per Holmström creates electronic music that crosses between the lines of futurepop and darker industrial.
Document 6: Guðmundur Gunnarsson: Guðmundur Gunnarsson (born 29 October 1945) is an Icelandic electrician and union leader. The father of the singer Björk (Björk Guðmundsdóttir), he is a nationally known figure in his own right as the leader of the Icelandic Electricians' Union, Rafiðnaðarsamband Íslands (RSÍ).
Document 7: Punk rock: Punk rock (or "punk") is a rock music genre that developed in the early to mid-1970s in the United States, United Kingdom, and Australia. Rooted in 1960s garage rock and other forms of what is now known as "proto-punk" music, punk rock bands rejected perceived excesses of mainstream 1970s rock. Punk bands typically produced short or fast-paced songs, with hard-edged melodies and singing styles, stripped-down instrumentation, and often political, anti-establishment lyrics. Punk embraces a DIY ethic; many bands self-produce recordings and distribute them through informal channels.
Document 8: Mindless Self Indulgence: Mindless Self Indulgence (often shortened to MSI) is an American electropunk band formed in New York City in 1997. Their music has a mixed style which includes punk rock, alternative rock, electronica, techno, industrial, hip hop and breakbeat hardcore. Their group name is derived from an Ayn Rand quote found in the book "Atlas Shrugged".
Document 9: Marilyn Manson (band): Marilyn Manson is an American rock band formed by singer Marilyn Manson and guitarist Daisy Berkowitz in Fort Lauderdale, Florida, in 1989. Originally named Marilyn Manson & the Spooky Kids, they gained a local cult following in South Florida in the early 1990s with their theatrical live performances. In 1993, they were the first act signed to Trent Reznor's Nothing Records label. Until 1996, the name of each member was created by combining the first name of an iconic female sex symbol and the last name of an iconic serial killer, for example Marilyn Monroe and Charles Manson. Their lineup has changed between many of their album releases; the current members of Marilyn Manson are the eponymous lead singer (the only remaining original member), bassist Twiggy Ramirez, guitarists Paul Wiley and Tyler Bates, and drummer Gil Sharone.
Document 10: Tappi Tíkarrass: Tappi Tíkarrass was an Icelandic punk band which added elements of funk, rock and jazz to their music, marking a difference from other traditional bands at that time. The band is also considered the first serious music project of now renowned singer Björk Guðmundsdóttir.
Document 11: Nordik beat: The Scandinavian electro-pop scene kickstarted with the invention of the Nordik Beat sound in Stockholm in the late 1980s. By merging the new technologies at the time, building small inexpensive studios armed with computers and samplers rather than traditional instruments and studio equipment, and the latest dance music trends (house, techno, hip-hop, electro, etc.) with the Scandinavian focus since ABBA on mixing strong pop melodies with catchy hooks, both a new sound and a new way of making music were born. A commonly recognized birth date for the movement has become the October 1987 cover story of ID Magazine in the UK, a cover graced by the first international Afro-Scandinavian pop star, La Camilla from Army of Lovers, as the face of the brand new Nordik Beat movement.
Document 12: Atlas Shrugged: Atlas Shrugged is a 1957 novel by Ayn Rand. Rand's fourth and last novel, it was also her longest, and the one she considered to be her "magnum opus" in the realm of fiction writing. "Atlas Shrugged" includes elements of science fiction, mystery, and romance, and it contains Rand's most extensive statement of Objectivism in any of her works of fiction.
Document 13: Björk: Björk Guðmundsdóttir (] , born 21 November 1965), known as Björk ( ), is an Icelandic singer, songwriter, actress, record producer, and DJ. Over her four-decade career, she has developed an eclectic musical style that draws on a wide range of influences and genres spanning electronic, pop, experimental, classical, trip hop, IDM, and avant-garde styles. She initially became known as the lead singer of the alternative rock band The Sugarcubes, whose 1987 single "Birthday" was a hit on US and UK indie stations and a favorite among music critics. Björk embarked on a solo career in 1993, coming to prominence as a solo artist with albums such as "Debut" (1993), "Post" (1995), and "Homogenic" (1997), while collaborating with a range of artists and exploring a variety of multimedia projects.
Document 14: How I Learned to Stop Giving a Shit and Love Mindless Self Indulgence: How I Learned to Stop Giving a Shit and Love Mindless Self Indulgence
Document 15: List of awards and nominations received by Björk: Björk is a singer-songwriter from Reykjavík, Iceland. Her debut album, "Björk", considered juvenilia, was released in 1977 by the Fálkinn record label. Her subsequent eight studio albums were released by One Little Indian Records: "Debut" (1993), "Post" (1995), "Homogenic" (1997), "Vespertine" (2001), "Medúlla" (2004), "Volta" (2007), "Biophilia" (2011) and "Vulnicura" (2015). Six of her albums have entered the top 10 in the UK Albums Chart, while "Volta", is her only album to reach the top 10 in the "Billboard" 200. Björk's record label, One Little Indian Records, reported that she has sold more than 20 million albums worldwide.
ground_truth: band