Yes, they lost to the Lakers in the '09 finals, though.
No, there is not an Official NBA team that represents any city in Kentucky.
Nebraska does not have an NBA team
Magic Johnson
Yes, a player who is not contracted to a particular team can sign with any NBA team after the season starts.
the Boston Celtics because they have 17 cups
I wouldn't know about any other organization than the NBA, but there is an NBA team called the Toronto Raptors.
The Boston Celtics currently have 17 NBA Championships
Dallas
no it has never happened
OK First, you go on Roster Management Second, Sign/Release Players. Then, on the right you will see FREE AGENTS then switch it to LEGENDS. After, you find Magic Johnson. Last, you could sign in any team you want. Well Magic Johnson was in the LAKERS so just put him there (if you want to) .
you mean TEAM? because LeBron was on it obviously... you don't see any of the other players in the NBA.
Magic Johnson was a basketball hall-of-famer as well as the first rookie to ever with the Finals MVP Award in 1980. He has also one the NBA's J. Walter Kennedy Citizenship Award for promoting AIDs awareness (he has HIV himself).