Problem: Background: David Michael Letterman (born April 12, 1947) is an American television host, comedian, writer, and producer. He hosted a late night television talk show for 33 years, beginning with the February 1, 1982, debut of Late Night with David Letterman on NBC, and ending with the May 20, 2015, broadcast of Late Show with David Letterman on CBS. In total, Letterman hosted 6,028 episodes of Late Night and Late Show, surpassing friend and mentor Johnny Carson as the longest-serving late night talk show host in American television history. In 1996 Letterman was ranked 45th on TV Guide's 50 Greatest TV Stars of All Time.
Context: NBC kept Letterman under contract to try him in a different time slot. Late Night with David Letterman debuted February 1, 1982; the first guest on the first show was Bill Murray. Murray later went on to become one of Letterman's most recurrent guests, guesting on the show's 30th anniversary episode, which aired January 31, 2012 and on the very last show, which aired May 20, 2015. The show ran Monday through Thursday at 12:30 a.m. Eastern Time, immediately following The Tonight Show Starring Johnny Carson (a Friday night broadcast was added in June 1987). It was seen as being edgy and unpredictable, and soon developed a cult following (particularly among college students). Letterman's reputation as an acerbic interviewer was borne out in verbal sparring matches with Cher (who even called him an asshole on the show), Shirley MacLaine, Charles Grodin, and Madonna. The show also featured comedy segments and running characters, in a style heavily influenced by the 1950s and 1960s programs of Steve Allen. The show often featured quirky, genre-mocking regular features, including "Stupid Pet Tricks" (which had its origins on Letterman's morning show), Stupid Human Tricks, dropping various objects off the roof of a five-story building, demonstrations of unorthodox clothing (such as suits made of Alka-Seltzer, Velcro and suet), a recurring Top 10 list, the Monkey-Cam (and the Audience Cam), a facetious letter-answering segment, several "Film[s] by My Dog Bob" in which a camera was mounted on Letterman's own dog (often with comic results) and Small Town News, all of which would eventually move with Letterman to CBS. Other memorable moments included Letterman using a bullhorn to interrupt a live interview on The Today Show, announcing that he was the NBC News president and that he was not wearing any pants; walking across the hall to Studio 6B, at the time the news studio for WNBC-TV, and interrupting Al Roker's weather segments during Live at Five; and staging "elevator races", complete with commentary by NBC Sports' Bob Costas. In one infamous appearance, in 1982, Andy Kaufman (who was already wearing a neck brace) appeared with professional wrestler Jerry Lawler, who slapped and knocked the comedian to the ground (though Lawler and Kaufman's friend Bob Zmuda later revealed that the event was staged).
Question: When did late night with david letterman begin?
Answer: Late Night with David Letterman debuted February 1, 1982; the first guest on the first show was Bill Murray.

Background: Vampire Weekend are an American rock band from New York City, formed in 2006. They are currently signed to Columbia Records. The band consists of lead vocalist and guitarist Ezra Koenig, drummer and percussionist Chris Tomson and bassist and backing vocalist Chris Baio. The band's first album Vampire Weekend (2008) - which included the singles "Mansard Roof", "A-Punk", "Oxford Comma", "Cape Cod Kwassa Kwassa" and "The Kids Don't Stand a Chance" - was acclaimed by critics for its world music influences.
Context: On November 11, 2011, it was revealed that Vampire Weekend had been in the studio, writing and recording material for their third album. On April 26, 2012, Rolling Stone reported that the new album could be released by the end of the year. Koenig said, "We do have a ton of stuff. It would be cool if it was [released] this year...We just never want to be in a position [where] when we put out something, we feel could've benefited from more time." Until its release, the band was discreet about the details of the next album, stating that a band "can give a bunch of interviews when they're working on stuff" but they "don't want something [they] said six months ago to influence how people hear it when it's done." Modern Vampires of the City was released in May 2013, and written and recorded in various locations including SlowDeath Studios in New York, Echo Park "Back House" in Los Angeles, Vox Recording Studios in Hollywood, Rostam Batmanglij's New York apartment and a guest house on Martha's Vineyard. The album was co-produced by Batmanglij and Ariel Rechtshaid. After Batmanglij produced the first two albums himself, this marked the first time the band worked with an outside producer on any of their records. In an interview for the February 2013 edition of Q (released in mid-January), Koenig described the upcoming album as "darker and more organic" and "very much the last of a trilogy". Says Koenig, "Things that we might have found boring in the past, we've started to find more fresh. This album has more piano and acoustic guitar and organ." Modern Vampires of the City also marks the band's first use of digital voice modulation, as heard in the songs "Diane Young" and "Ya Hey." (first use was actually in the song "California English" on the Contra album) The album was recorded and co-produced by Ariel Rechtshaid in his Los Angeles Studio (alongside Batmanglij). The band discussed the album with The FADER and appeared on the cover of the magazine's 84th issue. On March 16, 2013, the band played the closing show at Stubbs on the last day of the SXSW festival in Austin, Texas. In the show they played two new songs from the upcoming album: "Diane Young" and "Ya Hey". On March 18, 2013, Vampire Weekend released a double-sided single, "Diane Young"/"Step". On May 11, 2013, Vampire Weekend were featured as the musical guest on Saturday Night Live with Kristen Wiig hosting, their third time on the show. Released on May 14, 2013, the album debuted at #1 on the Billboard chart, marking the second time Vampire Weekend has achieved the feat: its second album Contra also debuted at #1 in 2010, making this the first time an independent rock band has entered at #1 with two consecutive releases. Modern Vampires of the City also shattered the previous record for first week vinyl sales, moving nearly 10,000 units on vinyl alone and debuting at #1 on the Soundscan Vinyl Charts. Additionally, the band charted #1 at Indie, Alternative, Digital and the top 200. In 2014, Modern Vampires of the City won a Grammy for Best Alternative Music Album.
Question: what did they do
Answer:
material