Question: X Ambassadors and Sleigh Bells, are from which city?

full_context: Document 1: Daddy X: Brad Xavier, known by his stage name Daddy X, is a hip hop artist and record producer. He used to be in the punk/hardcore band Doggy Style, in which he went by the stage name of Brad X. He is the frontman for Kottonmouth Kings, Humble Gods, and X-Pistols (with The Dirtball). He is married to Anna Rose and has a daughter named Sky Blue Xavier, and wrote a song for her on his debut solo album Organic Soul.
Document 2: American Authors: American Authors is an American rock band based in New York City currently signed to Island Records. It currently consists of lead vocalist and guitarist Zac Barnett, lead guitarist and banjoist James Adam Shelley, bassist Dave Rublin, and drummer Matt Sanchez. They are best known for their hit singles "Believer" and "Best Day of My Life" from their debut album "Oh, What a Life", as well as their Top 20 hit, "Go Big or Go Home", from their second album, "What We Live For".
Document 3: Tell 'Em: "Tell 'Em" is a song by American music duo Sleigh Bells from their debut album "Treats". Written by Miller and sung by Alexis Krauss, the song is the album's opening track, and was released as its lead single.
Document 4: Broken Bells (album): Broken Bells is the self-titled debut album from Broken Bells, consisting of James Mercer of indie rock band The Shins with producer and multi-instrumentalist Brian Burton (aka Danger Mouse), and was released on March 9, 2010.
Document 5: XTRMST: XTRMST is an American straight edge hardcore band featuring Davey Havok and Jade Puget of AFI. XTRMST is Havok and Puget's second side project after their electronic project Blaqk Audio. They released their debut album "XTRMST" in 2014 on long-time friend Steve Aoki's Dim Mak Records. Havok and Puget later added Chris Sorenson (Saosin) on bass, Josh James (Stick to Your Guns, Evergreen Terrace), Casey Jones on guitar, and Val Saucedo (Loma Prieta, Punch) on drums.
Document 6: Jessica Rabbit (album): Jessica Rabbit is the fourth studio album by American noise pop duo Sleigh Bells. It was released on November 11, 2016 by Torn Clean, the duo's own label, in partnership with Sinderlyn.
Document 7: X (American band): X is an American punk rock band, formed in Los Angeles in 1977, among the first wave of American punk. The original members are vocalist Exene Cervenka, vocalist/bassist John Doe, guitarist Billy Zoom and drummer D.J. Bonebrake. The band released seven studio albums from 1980 to 1993. After a period of inactivity during the mid to late 1990s, X reunited in the early 2000s, and currently tours.
Document 8: Eight Bells (band): Eight Bells is an American experimental metal band based in Portland, Oregon. It was formed by guitarist Melynda Jackson after SubArachnoid Space disbanded in 2011. She was joined by bassist Haley Westeiner and SubArachnoid Space drummer Christopher Van Huffel. They describe their music as expressionistic experimental metal. Their debut album, "The Captain's Daughter", was released 19 February 2013 by Seventh Rule Recordings. The band toured in April 2013 to promote the album. Their follow-up, "Landless", was released on February 12, 2016. They toured with Voivod and Vektor in the Northeastern United States in support of the album. In August 2016, Jackson announced a new lineup with Dan Barone replacing Westeiner on Bass, and the addition of Melynda Amann on synth and vocals.
Document 9: Broken Bells: Broken Bells is an American indie rock band composed of artist-producer Brian Burton (better known as Danger Mouse) and James Mercer, the lead vocalist and guitarist for the indie rock band The Shins. Broken Bells compose and create as a duo, but are joined by Dan Elkan and Jon Sortland when performing live. The previous live band included Conor Oberst and the Mystic Valley Band sidemen Nate Walcott and Nik Freitas, and Jonathan Hischke and Dan Elkan, both ex-members of Hella. Following their 2010 self-titled debut album, the duo released an EP, "Meyrin Fields", in 2011 and their second studio album, "After the Disco", on February 4, 2014.
Document 10: Imagine Dragons: Imagine Dragons is an American rock band from Las Vegas, Nevada, consisting of lead vocalist Dan Reynolds, lead guitarist Wayne Sermon, bassist and keyboardist Ben McKee, and drummer Daniel Platzman. The band first gained exposure in 2012 with the releases of their debut studio album "Night Visions" and its first single "It's Time". "Billboard" placed them at the top of their "Year In Rock" rankings for 2013, and named them their "Breakthrough Band of 2013". "Rolling Stone" named their single "Radioactive" from "Night Visions" the "biggest rock hit of the year", and MTV called them "the year's biggest breakout band". "Night Visions" peaked at number two on the weekly US "Billboard" 200 chart and the UK Albums Chart. The band's second studio album "Smoke + Mirrors" was released in 2015, and reached number one in the US, Canada and the UK. After touring for their sophomore record, the band took a brief hiatus to focus on their personal lives. During the latter half of 2016, they began recording their third studio album, "Evolve", released in 2017. While all three albums were commercially successful, critical reception was mixed.
Document 11: Sleigh Bells (band): Sleigh Bells is an American noise pop musical duo based in Brooklyn, New York, formed in 2008. The duo consists of vocalist Alexis Krauss and guitarist Derek Edward Miller. After signing to N.E.E.T. Recordings and Mom + Pop Music, Sleigh Bells released their debut album, "Treats", in May 2010. Their follow-up album, "Reign of Terror", was released in February 2012. In October 2013, the band released their third album, "Bitter Rivals" while their fourth album, "Jessica Rabbit", was released in November 2016.
Document 12: X Ambassadors: X Ambassadors (also stylized XA) is an American rock band from Ithaca, New York. It currently consists of lead vocalist Sam Harris, keyboardist Casey Harris, lead guitarist Noah Feldshuh, and drummer Adam Levin. Their most notable songs include "Jungle", "Renegades", and "Unsteady". The band's debut full-length album, "VHS", was released on June 30, 2015.
Document 13: Reign of Terror (Sleigh Bells album): Reign of Terror is the second studio album by American noise pop duo Sleigh Bells. The album was released on February 21, 2012 by Mom+Pop.
Document 14: Jungle (X Ambassadors and Jamie N Commons song): "Jungle" is a song by American rock band X Ambassadors and British blues rock singer Jamie N Commons. It was released as a single on 18 December 2013 by KIDinaKORNER and Interscope. The track appeared on X Ambassadors' 2014 EP "The Reason" and their 2015 studio album "VHS".
Document 15: The xx: The xx are an English indie pop band formed in 2005 in Wandsworth, London, and currently consists of Oliver Sim (bass, vocals), Romy Madley Croft (guitar, vocals) and Jamie xx (beats, MPC, record production). They are best known for their distinct and unique minimalistic sound that blends the likes of indie pop, indie electronic, dream pop and electronic rock and the dual vocalist setup of both Croft and Sim.
ground_truth: New York