More versions 
According to , there are some more versions:

 Audio Bullys - Bang Bang (My Baby Shot Me Down).mp3
 Audiobullys ft Nancy Sinatra - Shot you down (Bang Bang).mp3
 Bang Bang (My Baby Shot Me Down)- Spot Omsa.mp3
 CHER - Bang - bang.mp3
 Christine Henry - Bang Bang (My Baby Shot Me Down).mp3
 Cliff Richard - Bang Bang (My Baby Shot Me Down).mp3
 Dalida - Bang bang (Italian) .mp3
 Equipe 84 - Bang bang (Spanish).mp3
 Erica Jennings - Bang, Bang (Tracy Young Mix).mp3
 Kaliyah - Bang bang (French RnB).mp3
 Nancy Sinatra - Bang Bang (My Baby Shot Me Down).mp3
 PETULA CLARCK - Bang, bang.mp3
 Sheila - Bang Bang (French).mp3
 The Raconteurs - Bang Bang (My Baby Shot Me Down).mp3
 Vanilla Fudge - Bang Bang.mp3

I've listed them here, in case that site becomes unavailable. Some unmentioned versions may be listed in article.