Question: what does Echosmith and Guster have in common?

full_context: Document 1: The Joggers: The Joggers, formerly known as Stateside, are a four-piece band from Portland, Oregon. They play complex songs with elements of math rock which retain a pop sensibility. The guitar style of (lead singer and songwriter) Ben Whitesides and the second guitarist rejects a traditional rhythm & lead style for more scale exploration and includes elements of call and response. Murphy Kasiewicz played second guitar on "Solid Guild", but left the band before the recording of "With A Cape And A Cane" and was replaced by Dan Wilson (from Alaska) after that album, touring the US in support of it. Jake Morris has also played drums on tour with French Kicks and played drums for The Shaky Hands from December 2008 to March 2010. All members sing parts at various times, with unique and sometimes antique harmonies, and sometimes play various instruments. Ben Whitesides is the son of George M. Whitesides, one of the most decorated and wealthy chemists in the world.
Document 2: Boyce Avenue: Boyce Avenue is an American rock band formed in Sarasota, Florida, by brothers Alejandro Luis Manzano, Daniel Enrique Manzano, and Fabian Rafael Manzano. The brothers attended Pine View School in Osprey, Florida. The band is named after a combination of two streets the brothers lived on as children. As of August 9, 2011, they are no longer signed to Universal Republic Records and have started their own independent record label called 3 Peace Records. Boyce Avenue releases original music as well as covers of contemporary and classic songs on YouTube. Boyce Avenue has also collaborated with other YouTube artists such as Hannah Trigwell, Kina Grannis, Tiffany Alvord, Megan Nicole, Alex Goot, Megan and Liz, David Choi, Tyler Ward, Savannah Outen, Cobus Potgieter, John Robby Deleon and DeStorm Power and "The X Factor" season two finalists Fifth Harmony, Bea Miller, Diamond White, Carly Rose Sonenclar, and also actress Sarah Hyland.
Document 3: Aerosmith: Aerosmith is an American rock band, sometimes referred to as "the Bad Boys from Boston" and "America's Greatest Rock and Roll Band". Their style, which is rooted in blues-based hard rock, has come to also incorporate elements of pop, heavy metal, and rhythm and blues, and has inspired many subsequent rock artists. They were formed in Boston, Massachusetts in 1970. Guitarist Joe Perry and bassist Tom Hamilton, originally in a band together called the Jam Band, met up with vocalist/pianist/harmonicist Steven Tyler, drummer Joey Kramer, and guitarist Ray Tabano, and formed Aerosmith. In 1971, Tabano was replaced by Brad Whitford, and the band began developing a following in Boston.
Document 4: Echosmith: Echosmith is an American, Corporate indie pop band formed in February 2009 in Chino, California. Originally formed as a quartet of siblings, the band currently consists of Sydney, Noah and Graham Sierota, following the departure of eldest sibling Jamie in late 2016. Echosmith started first as "Ready Set Go!" until they signed to Warner Bros. Records in May 2012. They are best known for their hit song "Cool Kids", which reached number 13 on the "Billboard" Hot 100 and was certified double platinum by the RIAA with over 1,200,000 sales in the United States and also double platinum by ARIA in Australia. The song was Warner Bros. Records' fifth-biggest-selling-digital song of 2014, with 1.3 million downloads sold. The band's debut album, "Talking Dreams", was released on October 8, 2013.
Document 5: 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 6: The Cars: The Cars are an American rock band that emerged from the new wave scene in the late 1970s. The band originated in Boston, Massachusetts, in 1976, with singer, rhythm guitarist and songwriter Ric Ocasek, singer and bassist Benjamin Orr, lead guitarist Elliot Easton, keyboardist Greg Hawkes and drummer David Robinson.
Document 7: R.E.M.: R.E.M. was an American rock band that formed in Athens, Georgia, in 1980 by lead singer Michael Stipe, guitarist Peter Buck, bassist/backing vocalist Mike Mills, and drummer Bill Berry. One of the first alternative rock bands, R.E.M. was noted for Stipe's particular vocal quality and obscure lyrics, Buck's ringing, arpeggiated guitar style, and Mills' melodic basslines and backing vocals. R.E.M. released its first single—"Radio Free Europe"—in 1981 on the independent record label Hib-Tone. The single was followed by the "Chronic Town" EP in 1982, the band's first release on I.R.S. Records. In 1983, the group released its critically acclaimed debut album, "Murmur", and built its reputation over the next few years through subsequent releases, constant touring, and the support of college radio. Following years of underground success, R.E.M. achieved a mainstream hit in 1987 with the single "The One I Love". The group signed to Warner Bros. Records in 1988, and began to espouse political and environmental concerns while playing large arenas worldwide.
Document 8: SWMRS: SWMRS (formerly Emily's Army) is an American punk rock band formed in Oakland, California in 2004 by Cole Becker and Joey Armstrong, with Cole's brother Max joining only a few weeks afterwards. They drew on a mix of influences ranging from the Beach Boys to the Ramones to create their own brand of rock. The band added Travis Neumann in 2009, who later left in 2014 due to creative differences. The band released a demo and a string of EPs from 2008 to 2010. The band released their first album, "Don't Be a Dick", on June 14, 2011. The band's second album, "Lost at Seventeen", was released on June 11, 2013. They added Sebastian Mueller as the bassist 2014. The band's third studio album, and their first under the name SWMRS after dropping their former name, "Drive North", was released February 12, 2016, via Uncool Records. "Drive North" was later re-released and remastered after the band was signed to record label Fueled By Ramen on October 13, 2016.
Document 9: The Band Perry: The Band Perry is an American music group composed of siblings Kimberly Perry (lead vocals, guitar, piano), Reid Perry (bass guitar, background vocals), and Neil Perry (mandolin, drums, accordion, background vocals). They signed to Republic Nashville in August 2009 and released their self-titled debut album on October 12, 2010. From this album, "If I Die Young" reached number one on the U.S. "Billboard" Hot Country Songs and Hot Adult Contemporary Tracks charts and has been certified 6x multi-platinum. Their second album, "Pioneer", was released April 2, 2013. It produced additional number one singles in "Better Dig Two" and "Done", plus the top 10 hits "Don't Let Me Be Lonely" and "Chainsaw". In the spring of 2016, the trio parted ways with the Big Machine Label Group and later signed to Interscope Records. In July 2016, Neil, Reid, and Kimberly appeared on "Celebrity Family Feud".
Document 10: The Summer Set: The Summer Set was an American rock band from Phoenix, Arizona formed in 2007. The band consisted of lead vocalist Brian Dales, guitarists Josh Montgomery and John Gomez, bass guitarist Stephen Gomez, and percussionist Jess Bowen. Formerly signed to The Militia Group in 2008 and to Razor & Tie from 2009–11, they later signed to Fearless Records and have released four full-length studio albums: "Love Like This" (2009), "Everything's Fine" (2011), "Legendary" (2013), "Stories for Monday" (2016) and four extended plays. The band has toured with other acts such as The Cab, We Are the In Crowd, Mayday Parade, Sleeping with Sirens, All Time Low, The Downtown Fiction, Action Item, among several others.
Document 11: Sleeping with Sirens: Sleeping with Sirens is an American rock band from Orlando, Florida currently residing in Grand Rapids, Michigan. The band was formed in 2009 by members of For All We Know and Paddock Park. The group is currently signed to Warner Bros. Records and have released four full-length albums and an acoustic EP. They rose to fame by their song "If I'm James Dean, You're Audrey Hepburn" which is the lead single from their debut album "With Ears to See and Eyes to Hear" which released in 2010. The group's third album "Feel" debuted at No. 3 on the US "Billboard" 200, and a fourth album entitled "Madness" was released on March 17, 2015 through Epitaph Records and spawned the single "Kick Me". Their fifth studio album, "Gossip", was released on September 22, 2017 on Warner Bros. Records. The group is known primarily for the versatility of vocalist Kellin Quinn's leggero tenor vocal range, along with the heavy sound used on their early work and the pop influences they used later into their career.
Document 12: Gavin Castleton: Gavin Castleton is a musician/songwriter/producer from Providence, Rhode Island. Originally known for his work with Gruvis Malt as keyboardist and singer, Castleton has released nine full-length albums and seven EPs as a solo artist. He has also released two full-length albums with action-adventure rock trio Ebu Gogo and two records with Orlando-based drum 'n bass hip-hop group One Drop. Castleton currently resides in Portland, Oregon and performs as keyboardist and backing vocalist for The Dear Hunter.
Document 13: Guster: Guster is an American alternative rock band from Boston, Massachusetts. Founding members Adam Gardner, Ryan Miller, and Brian Rosenworcel began practice sessions while attending Tufts University in Medford, Massachusetts, and formed the band in 1991. The members met during the freshmen Wilderness Orientation program in August of that year, playing publicly together as a trio two months later at the Midnight Cafe coffee house set in the common area of the Lewis Hall dormitory. While attending Tufts, the band lived at 139 College Avenue in Somerville, Massachusetts.
Document 14: Mutemath: Mutemath (sometimes styled as MuteMath or MUTEMATH) is an American alternative rock band from New Orleans that formed in 2002. The group consists of lead vocalist and keyboardist Paul Meany, guitarist Todd Gummerman, and bassist Jonathan Allen, but they often perform on any mixture or variation of these instruments. They draw heavily from influences in 1960s and 1970s soul, psychedelic rock, and jam band styles, utilizing vintage guitars and amplifiers, as well as Rhodes keyboards, synthesizers, and other electronic instruments such as the keytar.
Document 15: List of songs recorded by the Veronicas: Australian duo the Veronicas, whose members are twin sisters Jessica Origliasso and Lisa Origliasso, have recorded songs for three studio albums. Having signed with Engine Room Recordings at the age of 19, the Origliasso twins received funding to write and record demos for other artists with different songwriters around the world. By the age of 20, the duo signed with Sire Records in the United States and began working on their debut studio album "The Secret Life Of...". The lead single "4ever" was co-written by Dr. Luke and Max Martin who also co-wrote the second single "Everything I'm Not" with the Origliasso twins and Rami Yacoub. The former song reached number two on the Australian ARIA Charts, while the latter peaked at number seven. The duo collaborated with Josh Alexander and Billy Steinberg on "When It All Falls Apart" and "Leave Me Alone", both third and fifth singles from the album, respectively. "Revolution", the fourth single from "The Secret Life Of..." was written by Raine Maida and Chantal Kreviazuk. Preceding the release of the album, the Origliasso's co-wrote the songs "All About Us", "Faded" and "What's Going On" which were later recorded by t.A.T.u., Kate DeAraugo and Casey Donovan, respectively.
ground_truth: band