Britney Spears with Pitbull & Marc Anthony - So Free "The track shows different changes through the different mixes, made by the producers, the most noticeable being in the first version, which is completely different from the first leak of the track made by us many years ago. In addition to these 6 different versions, we also leave you the mix for the radio and the official instruments." -from Britney-Online So Free (V1-6) So Free (Stereotypes Radio Edit) So Free (Official Instrumental) Hidden Content: You must reply before you can see the hidden data contained here.