Sharing on Facebook Header Image problem.

Hi everyone. Im practicing with my new Rockstar Pro and the complaint Im getting is that every time someone tries to share a Music Video, or Image from my website to their Facebook......the Header Image always shows on their post...always. I tried every setting, if I disable it, no image at all shows on their post. .....For example, if you try to share a video of metallica from my website to your FB.... you should be able to see a youtube image ogf the video. ...what am I doing wrong? Heres my website......thanks for any help. http://bajarockmusic.com/