Question: Where is the American pop rock band which Nate Ruess is the lead singer based in 

full_context: Document 1: Tyler Joseph: Tyler Robert Joseph (born December 1, 1988) is an American singer, songwriter, multi-instrumentalist, record producer, and rapper. He is the lead vocalist for the musical duo Twenty One Pilots.
Document 2: Vampire Weekend: Vampire Weekend is an American rock band from New York City, formed in 2006. They are currently signed to XL Recordings. 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. Their following album, "Contra" (2010), was similarly acclaimed and garnered strong commercial success. Their third studio album, "Modern Vampires of the City" (2013), won the group a Grammy Award for Best Alternative Music Album in 2014.
Document 3: Panic! at the Disco: Panic! at the Disco is an American rock band from Las Vegas, Nevada, formed in 2004 and featuring the current lineup of vocalist Brendon Urie, accompanied on tour by bassist Dallon Weekes, guitarist Kenneth Harris and drummer Dan Pawlovich. Founded by childhood friends Ryan Ross, Spencer Smith, Brent Wilson and Urie, Panic! at the Disco recorded its first demos while its members were in high school. Shortly after, the band recorded and released its debut studio album, "A Fever You Can't Sweat Out" (2005). Popularized by the second single, "I Write Sins Not Tragedies", the album was certified double platinum in the US. In 2006, founding bassist Brent Wilson was fired from the band during an extensive world tour and subsequently replaced by Jon Walker.
Document 4: Fun (band): Fun (stylized as fun.) is an American pop rock band based in New York City. The band was formed by Nate Ruess (former lead singer of The Format), with Andrew Dost (of Anathallo), and Jack Antonoff (of Steel Train and Bleachers). Fun has released two albums: "Aim and Ignite" in August 2009 and "Some Nights" in February 2012.
Document 5: Twenty One Pilots: Twenty One Pilots (stylized as TWENTY ØNE PILØTS, and formerly as twenty | one | pilots) is an American musical duo originating from Columbus, Ohio. The band was formed in 2009 by lead vocalist Tyler Joseph along with former members Nick Thomas and Chris Salih, who left in 2011, and currently consists of Joseph and drummer Josh Dun. The duo rose to fame in the mid-2010s after several years of touring and independent releases.
Document 6: The Format: The Format was an American indie rock band formed by Nate Ruess and Sam Means. The band announced a hiatus on February 4, 2008. Their style can be considered a mixture of indie, alternative, punk and folk music, with elements of 1960s and 1970s pop music. Though Means and Ruess are the foremost members of the band, they have played, toured, and recorded with Mike Schey, Mark Buzard, Don Raymond, and—for the DVD recording and summer 2007 tour—The Honorary Title's current drummer and The Format alumnus Adam Boyd. The Format chose their name to make fun of the music industry's inclination towards a cookie-cutter "format" for a hit.
Document 7: Grand Romantic: Grand Romantic is the debut studio album of Nate Ruess, lead vocalist from The Format and Fun. It was released on June 16, 2015, by Fueled By Ramen. The album was produced by Some Nights producer Jeff Bhasker. Following the hiatus of Fun, Ruess announced that he would be working on material for a solo project.
Document 8: The Lumineers: The Lumineers are an American folk rock/Americana band based in Denver, Colorado. The founding members are Wesley Schultz (lead vocals, guitar) and Jeremiah Fraites (drums, percussion). Schultz and Fraites began writing and performing together in Ramsey, New Jersey in 2005. Cellist and vocalist Neyla Pekarek joined the band in 2010. The Lumineers emerged as one of the most popular folk rock/Americana artists during the revival of those genres and their growing popularity in the 2010s. The band's stripped back raw sound draws heavily from artists that influenced Schultz and Fraites such as Bruce Springsteen, Bob Dylan and Tom Petty. They are known for their energetic live shows and several international hit singles including "Ho Hey”, “Stubborn Love”, “Ophelia” and “Cleopatra”. The band has become one of the top touring bands in the U.S. and also sells out shows around the world.
Document 9: Twenty One Pilots discography: American musical duo Twenty One Pilots have released four studio albums, one live album, seven extended plays, fifteen singles and eighteen music videos. The band was formed in 2009 and currently consists of Tyler Joseph and Josh Dun. They put out two self-released albums, "Twenty One Pilots" in 2009 and "Regional at Best" in 2011, before being signed by Fueled by Ramen in 2012. They released their third studio album, "Vessel", with Fueled by Ramen in 2013. Their fourth studio album, "Blurryface", was released on May 15, 2015 through the same label. On November 25, 2016, they released "Blurryface Live", a three-LP, Tri-Gatefold Picture Disc Vinyl featuring the live audio recorded during a concert at The Fox Theater in Oakland, CA.
Document 10: Nate Ruess: Nathaniel Joseph Ruess (born February 26, 1982) is an American singer and songwriter. He is the lead singer of the indie pop band Fun., and previously of The Format. As of 2015, he also performs as a solo musician.
Document 11: The National (band): The National is an American indie rock band from Cincinnati, Ohio, formed in 1999. The band consists of Matt Berninger (vocals), Aaron Dessner (guitar, keyboards), Bryce Dessner (guitar), Scott Devendorf (bass) and Bryan Devendorf (drums).
Document 12: Against the Current (band): Against the Current (often abbreviated as ATC) is an American pop rock band based in Poughkeepsie, New York and formed in 2011. The band currently consists of lead vocalist Chrissy Costanza, guitarist Dan Gow, and drummer Will Ferri. The group gained a sizable YouTube following after posting their covers of popular songs from a variety of different artists.
Document 13: Fun discography: The discography of American indie pop band Fun consists of two studio albums, seven extended plays, 11 singles and seven music videos. Following the split of his previous band The Format, lead singer Nate Ruess formed Fun in 2008 with musicians Andrew Dost and Jack Antonoff, both of whom had previously toured with The Format. Fun began recording sessions for their debut album in September 2008 and embarked on a North American tour the following month. In May 2009, they issued their debut single, "At Least I'm Not as Sad (As I Used to Be)". "Aim and Ignite", the band's first full-length album, was released by Nettwerk Records on August 25, 2009 and peaked at number 71 on the United States "Billboard" 200 chart. The album produced an additional two singles, "All the Pretty Girls" and "Walking the Dog", which were then followed by the release of the single "C'mon", a collaboration with American alternative rock band Panic! at the Disco.
Document 14: Adam Levine: Adam Noah Levine (born March 18, 1979) is an American singer, songwriter, multi-instrumentalist, actor, and record producer. He is the lead singer for the pop rock band Maroon 5.
Document 15: Some Nights (song): "Some Nights" is a song by American indie pop band Fun. It was released on June 4, 2012, as the second single from their second studio album of the same name. The song was written by Jeff Bhasker, Nate Ruess, Andrew Dost, and Jack Antonoff. Musically "Some Nights" is an indie pop song with elements of power pop and afrobeat while the lyrics depict the protagonist having an existential crisis.
ground_truth: New York City