Which one is correct in this case?
I need to hear both sides of the story to know who's side I'm on.
I need to hear both sides of the story to know whose side I'm on.
I have seen both versions on the Internet but not sure which one is correct. First example: https://pbs.twimg.com/media/DwzA-bJWwAEdQhR.jpg:large Second example: https://itunes.apple.com/ca/album/whose-side-im-on/id252435454