There are currently 9 known artists/groups with this name.
1: Turkmen rock band (Turkmenistan), playing both group's own creations as well as native and foreign popular music stuff (covers).
2: Japanese indie rock band.
3: Swedish "Dansband" group started 1990. Their official site is http://www.blackjack.se (currently only in Swedish language)
4: Rapper from France.
5: Belgian hardrock cover band.
6: Italian rock band. Their official site is currently http://www.myspace.com/blackjackmusicrock
7: Australian heavy metal band.
8.Thai singer (แบล็คแจ็ค).Ukrainian rock band. http://www.myspace.com/blackjackart http://blackjack.com.ua/en/index.html
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