Question: What multi-purpose arena located within the MGM Grand Las Vegas on the Las Vegas Strip was the 2012 "Billboard" Music Awards held?

full_context: Document 1: T-Mobile Arena: T-Mobile Arena is a multi-use indoor arena on the Las Vegas Strip in Paradise, Nevada. Opened on April 6, 2016, the arena is a joint venture between MGM Resorts International and the Anschutz Entertainment Group.
Document 2: American Music Awards of 2012: The 40th Annual American Music Awards was held on November 18, 2012 at the Nokia Theatre in Los Angeles. The awards recognized the most popular artists and albums from the year 2012. It was broadcast live on ABC. The nominees were announced on October 9, 2012 by Christina Aguilera. This year included a brand new category, "Electronic Dance Music". Justin Bieber won all three of his nominations, and of each of their four nominations, Nicki Minaj won two, and Rihanna one. Katy Perry won one of her 2 nominations, whereas Adele and Taylor Swift each won the award for which they were nominated.
Document 3: 2012 Kids' Choice Awards: Nickelodeon's 25th Annual Kids' Choice Awards were held on March 31, 2012 at 8 p.m. ET in Los Angeles, California in the United States, where the winners received an orange-colored blimp trophy. Big Help Award winner Taylor Swift received a special silver-colored blimp from First Lady Michelle Obama. The complete list of nominees for the 2012 Kids' Choice Awards was released on January 11, 2012, leading up to the release of "Men in Black 3" on May 25, 2012. The event was hosted by "MIB 3 star" Will Smith, who with ten KCA blimps has won the most awards in previous telecasts. A record-breaking 223 million votes for favorites in 20 categories were cast during this year's voting period, up 11% over last year's votes.
Document 4: 2012 Billboard Music Awards: The 2012 "Billboard" Music Awards is a music award ceremony that was held on May 20, 2012 at the MGM Grand Garden Arena in Las Vegas, Nevada. It aired on ABC at 8:00/7:00 PM central. The show was hosted by Modern Family's Julie Bowen and Ty Burrell.
Document 5: MGM Grand Las Vegas: The MGM Grand Las Vegas (formerly Marina and MGM-Marina) is a hotel and casino located on the Las Vegas Strip in Paradise, Nevada. The MGM Grand is the largest single hotel in the United States with 5,124 rooms. It is also the third-largest hotel complex in the world by number of rooms and second-largest hotel resort complex in the United States behind the combined The Venetian and The Palazzo. When it opened in 1993, the MGM Grand was the largest hotel complex in the world.
Document 6: NME Awards 2012: The NME Awards 2012 were held in London, England, on 29 February 2012, at the Brixton Academy and was hosted by English comedian Jack Whitehall. The nominations were announced exclusively on Zane Lowe's BBC Radio 1 show on 30 January 2012. Arctic Monkeys had seven nominations, followed by Kasabian, who went on to win best British Band, Lana Del Rey and Muse with three apiece.
Document 7: MGM Grand Detroit: The MGM Grand Detroit in Detroit, Michigan, is one of three casino resort hotels in the city, and one of four in the Detroit–Windsor area. The luxury resort hotel opened on July 29, 1999, with a grand event which included models and celebrities including Ashanti, Kid Rock, and fireworks. It is the first luxury casino resort hotel in a major metropolis outside of Las Vegas. Detroit is one of the largest American cities and metropolitan regions to offer casino resort hotels.
Document 8: MGM Resorts International: MGM Resorts International is a global hospitality and entertainment company operating destination resorts in Las Vegas, Mississippi, New Jersey and Detroit, including Bellagio, MGM Grand, Mandalay Bay and The Mirage. The company recently opened MGM National Harbor in Maryland and is developing MGM Springfield in Massachusetts. It has a majority interest in MGM China Holdings Limited, which owns the MGM Macau resort and casino and is developing a gaming resort in Cotai. MGM Resorts owns 50 percent of CityCenter in Las Vegas, which features ARIA Resort & Casino. It has a majority controlling interest in MGM Growth Properties, a real estate investment trust.
Document 9: American Music Awards of 2009: The 37th Annual American Music Awards took place on November 22, 2009 at the Nokia Theatre in Los Angeles, California. The nominees were announced on October 13, 2009. For the first time in history, there was no host for the year's ceremony. Instead, various celebrities introduced the performers similar to the procedure at the Grammy Awards. Taylor Swift won five of six categories she was nominated for. Jay-Z and The Black Eyed Peas both won two awards. Michael Jackson's brother Jermaine Jackson accepted his awards on his behalf.
Document 10: American Music Awards of 2011: The 39th Annual American Music Awards was held on November 20, 2011 (8:00/7:00 EST/CST), at the Nokia Theatre in Los Angeles (see 2011 in music). The awards recognized the most popular artists and albums from the year 2011. Nominees were announced on October 11, 2011. The awards ceremony was host-free. It was broadcast on ABC.
Document 11: 39th People's Choice Awards: The 39th People's Choice Awards ceremony, honoring the best in popular culture for 2012, was held January 9, 2013 at the Nokia Theatre in Los Angeles, and was broadcast live on CBS and simulcast over Xbox Live at 9:00 pm EST. The ceremony was hosted by Kaley Cuoco. The nominees were announced in November, 2012.
Document 12: Madison Square Garden: Madison Square Garden, often called "MSG" or simply "The Garden", is a multi-purpose indoor arena in the New York City borough of Manhattan. Located in Midtown Manhattan between 7th and 8th Avenues from 31st to 33rd Streets, it is situated atop Pennsylvania Station. It is the fourth venue to bear the name "Madison Square Garden", the first two (1879 and 1890) of which were located on Madison Square, on East 26th Street and Madison Avenue, with the third Madison Square Garden further uptown at Eighth Avenue and 50th Street. The Garden is used for professional basketball and ice hockey, as well as boxing, concerts, ice shows, circuses, professional wrestling and other forms of sports and entertainment. It is close to other midtown Manhattan landmarks, including the Empire State Building, Koreatown, and Macy's at Herald Square. It is home to the New York Rangers of the National Hockey League (NHL), the New York Knicks of the National Basketball Association (NBA), and since 1997, the New York Liberty (WNBA).
Document 13: Las Vegas Festival Grounds: Las Vegas Festival Grounds (formerly MGM Resorts Festival Grounds) is a 33 acre open-air venue located on the Las Vegas Strip, north of the MGM-owned Circus Circus Hotel and Casino in Winchester, Nevada.
Document 14: 2005 World Music Awards: Under the patronage of Prince Albert II of Monaco the 17th annual World Music Awards were conducted at the Kodak Theatre in Hollywood, California on August 31, 2005. This is only the second time that the awards show has been held outside of Monaco. The five-hour awards show was co-hosted by Carmen Electra and "Desperate Housewives"' James Denton. The awards are based solely on record sales certified by the International Federation of the Phonographic Industry, a London-based trade group that represents the major record labels. Proceeds are donated to the Prince's favorite charity: the Monaco Aide and Presence Foundation. Usher, Kenny "Babyface" Edmonds, Amerie, Rihanna, and Teairra Marí paid tribute to Destiny's Child, who received an award for being the best-selling female group of all time. Patti LaBelle dedicated her performance of "I'll Stand By You" to the victims of Hurricane Katrina as did Stevie Wonder and Kidd Rock when they closed the show at 2am with a duet of "Living for the City".
Document 15: MGM Grand Garden Arena: The MGM Grand Garden Arena (originally known as the MGM Grand Garden Special Events Center) is a multi-purpose arena located within the MGM Grand Las Vegas on the Las Vegas Strip.
ground_truth: MGM Grand Garden Arena