Question: Which band was characterized s definining the genre chillwave, Cha Cha Cohen or Neon Indian?

Context paragraphs:
Cha Cha (film): Cha Cha is a 1979 Dutch film written by Herman Brood and directed by Herbert Curiel.  It stars Herman Brood, Nina Hagen, Lene Lovich and Les Chappell.  Released on December 13, 1979, the film is a story of a bank robber who is trying to change his life and become a rock star.  It takes place in Amsterdam's punk and new wave scene.  All characters in the film have the same names as the actors.  "Cha Cha" features musical performances by the main actors.  The soundtrack for the film was released by CBS and Ariola Records.

Cha Cha Cohen: Cha Cha Cohen were a band formed in 1994 by three members of The Wedding Present — Keith Gregory, Paul Dorrington and Simon Smith.  After recruiting singer Jacqui Cohen (AKA Jaqi Dulany) from The Dustdevils they released a single, "Sparky's Note", on Hemiola Records.

Cha Cha Twist: "Cha Cha Twist" is a 1960 song by Brice Coefield.  A song called Cha Cha Twist was also recorded by Connie Francis in 1962 on MGM, and by Paul Gallis on Heartbreak Records.

Cha Cha Cha Films: Cha Cha Cha Films (Spanish: Cha Cha Chá Producciones ) is a film production company founded by Alfonso Cuarón, Alejandro González Iñárritu and Guillermo del Toro.  The first film released under the Cha Cha Cha banner was "Rudo y Cursi", which the three partners produced but did not direct.

Cha Cha 2000 - Live in Tokyo 1996 Vol. 1: Cha Cha 2000 - Live in Tokyo 1996 Vol.  1 is a 1998 live album by the German group La!  Neu? , recorded at a 1996 concert in Tokyo during the band's Japanese tour.  The album consists of the second half of the 3½ hour concert, during which time the band played an extended 1¾ hour version of La Düsseldorf's 1978 song "Cha Cha 2000" (which was written by La!  Neu? 's frontman Klaus Dinger).  The album is regarded as the pinnacle of La!  Neu? 's and Dinger's artistic achievements by many, and continues to be the best selling album released by Captain Trip Records.

Neon Indian: Neon Indian is an American electronic music band from Denton, Texas.  The music is composed by Mexican-born Alan Palomo (born July 24, 1988), who is also known for his work with the band Ghosthustler, and as the solo artist VEGA.  The project has been characterized as defining the 2000s music genre known as chillwave.

Cha Cha (soundtrack): Cha Cha is the soundtrack to the 1979 Dutch film "Cha Cha", written by Herman Brood and directed by Herbert Curiel.  It features songs by Herman Brood and his band The Wild Romance, Nina Hagen, Lene Lovich, Les Chappell, and others.

Cha Cha Cha Township: Cha Cha Cha Township or simply known as Cha Cha Cha is a rural shopping centre in Shurugwi Rural Areas, 24 km South East of Shurugwi along the Beit Bridge road and 60 km from Gweru.  The tarred road from 12 km before Shurugwi was constructed by a Chinese company called China-Gansui making it one of the best located rural shopping centres in Zimbabwe, therefore it can not be considered a remote area.  It is relatively below standards with potholes and experienced sinking in some stages.  It was heavily affected by the floods during the summer of 2000.

Everybody Loves to Cha Cha Cha: "Everybody Loves to Cha Cha Cha" (originally released as "Everybody Likes to Cha Cha Cha") is a song by American singer-songwriter Sam Cooke, released in January 1959.  The song was one of Cooke's biggest successes on "Billboard"'s Hot R&B Sides chart, peaking at number two; the song also charted at number 31 on the "Billboard" Hot 100.

Cha Cha Cha (TV series): Cha Cha Cha was an Argentine sketch comedy television program aired in the 1990s on América TV, starring Alfredo Casero, Fabio Alberti, Diego Capusotto, and others.  It was characterized by absurd humour, often improvised and sometimes bordering on the surreal.  The show made the actors famous, and is considered as a classic in the history of Argentine television.  In 2012 it was announced by Casero that the show could return as a motion picture, but since the announcement no further developments have been made.

Supporting paragraphs: Cha Cha Cohen Neon Indian
Answer: Neon Indian