Dictionaries generally define Cajun as "a Louisianian who descends from French-speaking Acadians." I suppose that is roughly correct. However, many common Cajun surnames — such as, Soileau, Romero, Huval, Fontenot — are not Acadian in origin, but are Spanish, German or French Creole. The original Acadians married into other ethnic families in the region and their music became a blend also.
Whith the increased popularity of cajun and zydeco music around the world, it was inevitable that this unique music of Louisiania would make the round trip back to Canada. I recently came across two bands that have taken the music of south Louisiania and brought it back home with them.
Zydeco Loco was formed in 1996 by members of two Ottawa bands , the Suicide Kings and Mumbo Jumbo Voodoo Combo to bring their love of zydeco music to the dance floors of Ottawa.
-(update) Pictured above is Tornoto-based Swamperella (I had incorrectley identified them as Zydeco Loco). Looks like they're having fun! Cold, but fun!
Way out west in British Columbia, Mojo Zydeco came into being after a few of the band's members visited New Orleans in 2001. After experiencing the Zydeco culture, they decided to bring some of it home with them, and formed Zydeco Mojo upon their return to Vancouver.