1) Blackjack an American rapper. 2) Blackjack was a band featuring Michael Bolton and Bruce Kulick. The drummer was Sandy Gennaro and the bass player was Jimmy Haslip. 3) Blackjack is a Grime Producer In Nasty Crew From East London, UK 4) Blackjack is a Thrash-/Groove-Metal band from Germany. 5) Blackjack was a 1990s hard rock band from Hamilton, New Zealand. Info. 6) BlackJack was an alternative rock band from Croatia. 7) BlackJack is a Swedish dansband. 8) Blackjack is a Scottish Hard Rock/Southern Rock band from Edinburgh.