Question: How many people live in the area where the performer of Mighty Joe Moon was formed?

full_context: Document 1: Mighty Joe Moon: Mighty Joe Moon is the second studio album by American alternative rock band Grant Lee Buffalo. It was released in 1994 on Slash Records.
Document 2: Southern California: Six of the seven lines of the commuter rail system, Metrolink, run out of Downtown Los Angeles, connecting Los Angeles, Ventura, San Bernardino, Riverside, Orange, and San Diego counties with the other line connecting San Bernardino, Riverside, and Orange counties directly.
Document 3: Moon Pix: Moon Pix is the fourth album by Cat Power, the stage name and eponymous band of American singer-songwriter, Chan Marshall. It was released in September 1998 on Matador Records.
Document 4: San Francisco Bay Area: Home to approximately 7.68 million people, Northern California's nine - county Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by a complex multimodal transportation network. The larger combined statistical area of the region, which includes twelve counties, is the second - largest in California (after the Greater Los Angeles area), the fifth - largest in the United States, and the 41st - largest urban area in the world with 8.75 million people. The Bay Area's population is ethnically diverse: for example, roughly half of the region's residents are Hispanic, Asian, African American, or Pacific Islander, all of whom have a significant presence throughout the region.
Document 5: Southern California: Within southern California are two major cities, Los Angeles and San Diego, as well as three of the country's largest metropolitan areas. With a population of 3,792,621, Los Angeles is the most populous city in California and the second most populous in the United States. To the south and with a population of 1,307,402 is San Diego, the second most populous city in the state and the eighth most populous in the nation.
Document 6: Phil Lesh and Friends: Phil Lesh and Friends is an American rock band formed and led by Phil Lesh, former bassist of the Grateful Dead.
Document 7: Crooked Rain, Crooked Rain: The album was reissued on October 26, 2004 by Matador Records under the name "". The re-released version contains two discs: the first is the original album as well as B-sides and compilation tracks from that era. The second disc is a collection of previously unreleased tracks featuring former drummer Gary Young and live BBC Sessions. The collection features forty-nine tracks, culled from various previous recordings, including the original album, the single "Cut Your Hair", "Range Life", "Gold Soundz", the "Gold Soundz" Australia-N.Z. French Micronesia Tour '94 EP, the "Crooked Rain, Crooked Rain" bonus 7", and other recording sessions at Random Falls, NY, Louder Than You Think in Stockton, CA, and Waterworks, NY over the course of 1993.
Document 8: Buffalo Tom: Buffalo Tom is an American alternative rock band from Boston, Massachusetts, formed in 1986. Its principal members are guitarist Bill Janovitz, bassist Chris Colbourn, and drummer Tom Maginnis. The band's name is derived from the band Buffalo Springfield and the first name of the drummer.
Document 9: Southern California: Southern California includes the heavily built-up urban area stretching along the Pacific coast from Ventura, through the Greater Los Angeles Area and the Inland Empire, and down to Greater San Diego. Southern California's population encompasses seven metropolitan areas, or MSAs: the Los Angeles metropolitan area, consisting of Los Angeles and Orange counties; the Inland Empire, consisting of Riverside and San Bernardino counties; the San Diego metropolitan area; the Oxnard–Thousand Oaks–Ventura metropolitan area; the Santa Barbara metro area; the San Luis Obispo metropolitan area; and the El Centro area. Out of these, three are heavy populated areas: the Los Angeles area with over 12 million inhabitants, the Riverside-San Bernardino area with over four million inhabitants, and the San Diego area with over 3 million inhabitants. For CSA metropolitan purposes, the five counties of Los Angeles, Orange, Riverside, San Bernardino, and Ventura are all combined to make up the Greater Los Angeles Area with over 17.5 million people. With over 22 million people, southern California contains roughly 60 percent of California's population.
Document 10: Moon Germs: Moon Germs is a jazz album by Joe Farrell, recorded at the Van Gelder Studio on November 21, 1972 and released on CTI Records.
Document 11: Linkin Park: Linkin Park is an American rock band from Agoura Hills, California. The band's current lineup comprises vocalist/rhythm guitarist Mike Shinoda, lead guitarist Brad Delson, bassist Dave Farrell, DJ/keyboardist Joe Hahn, and drummer Rob Bourdon, all of whom are founding members. Vocalists Mark Wakefield and Chester Bennington and bassist Kyle Christner are former members of the band.
Document 12: Southern California: The state is most commonly divided and promoted by its regional tourism groups as consisting of northern, central, and southern California regions. The two AAA Auto Clubs of the state, the California State Automobile Association and the Automobile Club of Southern California, choose to simplify matters by dividing the state along the lines where their jurisdictions for membership apply, as either northern or southern California, in contrast to the three-region point of view. Another influence is the geographical phrase South of the Tehachapis, which would split the southern region off at the crest of that transverse range, but in that definition, the desert portions of north Los Angeles County and eastern Kern and San Bernardino Counties would be included in the southern California region due to their remoteness from the central valley and interior desert landscape.
Document 13: Jubilee (Grant Lee Buffalo album): Jubilee is the fourth studio album released in 1998 by Grant Lee Buffalo. The single "Truly,Truly" received significant radio airplay, appearing on Billboard's Modern Rock chart for 13 weeks while peaking at #11. According to Grant Lee Phillips, the album may have suffered from high expectations at the label.
Document 14: Stone Temple Pilots: Stone Temple Pilots (often abbreviated as STP) are an American rock band from San Diego, California, that originally consisted of Scott Weiland (lead vocals), brothers Robert DeLeo (bass, backing vocals) and Dean DeLeo (guitars), and Eric Kretz (drums). From the band's formation in 1989, its line - up remained unchanged until the firing of Weiland in February 2013. Linkin Park vocalist Chester Bennington joined the band in May 2013. In November 2015, Bennington left the band to focus solely on Linkin Park. On December 3, 2015, Weiland was found dead on his tour bus before a performance with his band The Wildabouts. In 2016, the band launched an online audition for a new lead vocalist. On July 20, 2017, Bennington was found dead at his home. His death was ruled as suicide by hanging. On November 14, 2017, Jeff Gutt became the new singer of the band.
Document 15: Grant Lee Buffalo: Grant Lee Buffalo was a rock band based in Los Angeles, California, consisting of Grant-Lee Phillips (vocals and guitar), Paul Kimble (bass) and Joey Peters (drums). All three were previously members of another Los Angeles band, Shiva Burlesque.
ground_truth: 12 million
sub_queries: Mighty Joe Moon >> performer Answer: Grant Lee Buffalo
Grant Lee Buffalo >> location of formation Answer: Los Angeles
How many inhabitants does the Los Angeles area contain? Answer: 12 million