Biography
At least two acts have recorded under the name of "Kwak":
1) A 2000s French rock outfit;
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2) A 1990s zouk group.
1) Kwak was created in 2002 in Paris and in Brittany, France, and comprises five singers and nine instruments:
Damien Tartamella - song, harmonica, musical saw
Julien Joubert - guitars, song
Xavier Hamon - percussions, drums
Cyril Arnould - song, guitar, bass
Guillaume Nost - bass, flute, choruses
In 2003, their self-produced album "Notes de paille" (Notes of straw) came out, and was supported by about 200 concerts. Three years later, the band released "Nage dans le sable" (Swim in the Sand).
Their sound is Folky but with the intensity of Rock N' Roll and the vibes of Reggae.
http://www.kwakoustik.com/
2) Kwak is a zouk group who recorded four albums during 1993-96.
Biography text from Last.fm, available under CC BY-SA.