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Tenacious D is an American rock duo that was formed in Los Angeles, California in 1994. Composed of lead vocalist and guitarist Jack Black and lead guitarist and vocalist Kyle Gass, the band has released three albums - Tenacious D (2001), The Pick of Destiny (2006) and Rize of the Fenix (2012). Tenacious D's studio releases, and (as of 2006) its live performances, feature a full band lineup, including such musicians as guitarist John Konesky and bassist John Spiker. Drummer Dave Grohl (Foo Fighters, Nirvana) has played on every studio album.
Jack Black and Kyle Gass initially met in Los Angeles in 1985, both members of the theatre troupe, The Actors' Gang. Black admits the duo did not see eye to eye due to animosity between the two, as Gass was the main musician for the Actor's Gang and felt threatened by Black. The Actor's Gang travelled to Edinburgh, Scotland for the Edinburgh Fringe in 1989. They were performing Tim Robbins' and Adam Simon's play Carnage. The two became friends during the trip, and eventually became best friends, with Black regularly visiting Gass' Cochran Avenue studio apartment, in the deal that Gass would teach Black to play guitar in return for food, mainly from fast-food chain Jack in the Box.  Between 1989 and 1994, the two would work at The Actor's Gang together, and would collaborate in productions. Gass and Black wrote their first song in 1994 after Black had been dumped by a girlfriend, this song was scrapped aside from the pair playing it at later Tenacious D concerts as a joke and referencing it in interviews. Their second song came about when Black was listening to Metallica's "One" in 1994 and told Gass that it was the "best song in the world". Gass told Black that they couldn't write the best song in the world but Black put a twist on it and said they could write a tribute. Gass played an A minor chord at his apartment and the two spent three full days crafting the song, when it was done Gass mentioned "they knew they had something". The song made the duo realise their comedic potential.  At their first concert, at Al's Bar (now an apartment complex), the band performed the live debut of "Tribute", their only song at the time, and the duo also gave the audience the chance to vote for their name. Black and Gass gave them the choice between "Pets or Meat", "Balboa's Biblical Theatre" and "The Axe Lords Featuring Gorgazon's Mischief" (Gass' personal favorite). "Tenacious D"--a basketball term used by commentators to describe robust defensive positioning in basketball --did not get the majority of votes, however, but according to Black "we forced it through". The venue had become a hotbed for upcoming bands due to the success of Nirvana and the Red Hot Chili Peppers, so much so that in attendance was David Cross who later cast Jack Black in his sketch comedy television series, Mr. Show.  In 1995, the band supported the band, Tool, during their Californian leg. Black attended UCLA with director Jason Bloom, therefore, when Bloom was made the director of 1996's Bio-Dome, Black and Gass were invited to perform a short song in the film. The two wrote the song, "5 Needs", and this was their first on-screen appearance as Tenacious D. Black and Gass also performed their song "Jesus Ranch" in the 1998 film, Bongwater. Tenacious D recorded their songs "Tribute", "Kyle Quit the Band", "Krishna" and "History" and released them in a demo tape called Tenacious Demo, in the mid-1990s with Andrew Gross, distributing it to various record companies until HBO offered them a TV show based upon the tape and Black's work on Mr. Show.
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Black admits the duo did not see eye to eye due to animosity between the two,


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Marissa Ann Mayer (; born May 30, 1975) is an American information technology executive, formerly serving as the president and chief executive officer of Yahoo!, a position she had held starting July 2012. It was announced in January 2017 that she would step down from the company's board upon the sale of Yahoo!'s operating business to Verizon Communications for $4.8 billion. She would not join the newly combined company, now called "Oath," and announced her resignation on June 13, 2017.
Mayer was born in Wausau, Wisconsin, the daughter of Margaret Mayer, an art teacher of Finnish descent, and Michael Mayer, an environmental engineer who worked for water companies. Her grandfather, Clem Mayer, had polio when he was 7 and served as mayor of Jackson, Wisconsin, for 32 years. She has a younger brother. She would later describe herself as having been "painfully shy" as a child and teenager. She "never had fewer than one after-school activity per day," participating in ballet, ice-skating, piano, swimming, debate, and Brownies. During middle school and high school, she took piano and ballet lessons, the latter of which taught her "criticism and discipline, poise, and confidence". At an early age, she showed an interest in math and science.  When she was attending Wausau West High School, Mayer was on the curling team and the precision dance team. She excelled in chemistry, calculus, biology, and physics. She took part in extracurricular activities, becoming president of her high school's Spanish club, treasurer of the Key Club, captain of the debate team, and captain of the pom-pom squad. Her high school debate team won the Wisconsin state championship and the pom-pom squad was the state runner-up. During high school, she worked as a grocery clerk. After graduating from high school in 1993, Mayer was selected by Tommy Thompson, then the Governor of Wisconsin, as one of the state's two delegates to attend the National Youth Science Camp in West Virginia.  Intending to become a pediatric neurosurgeon, Mayer took pre-med classes at Stanford University. She later switched her major from pediatric neuroscience to symbolic systems, a major which combined philosophy, cognitive psychology, linguistics, and computer science. At Stanford, she danced in the university ballet's Nutcracker, was a member of parliamentary debate, volunteered at children's hospitals, and helped bring computer science education to Bermuda's schools. During her junior year, she taught a class in symbolic systems, with Eric S. Roberts as her supervisor. The class was so well received by students that Roberts asked Mayer to teach another class over the summer. Mayer went on to graduate with honors from Stanford with a BS in symbolic systems in 1997 and an MS in computer science in 1999. For both degrees, her specialization was in artificial intelligence. For her undergraduate thesis, she built travel-recommendation software that advised users in natural-sounding human language. In 2009, the Illinois Institute of Technology granted Mayer an honoris causa doctorate degree in recognition of her work in the field of search.  Mayer interned at SRI International in Menlo Park, California, and Ubilab, UBS's research lab based in Zurich, Switzerland. She holds several patents in artificial intelligence and interface design.
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What else did she study ?

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She later switched her major from pediatric neuroscience to symbolic systems, a major which combined