Has Megan Fox blocked Machine Gun Kelly? That development would be a lot to handle given the promises of forever they were publicly making just a couple of years ago. While we can't confirm whether Fox has in fact blocked her ex, fans have been pointing out that she no longer appears in the musician's Instagram followers list (via E! News) - which can either mean that he unfollowed her or that she blocked him. Fans think Megan Fox blocked Machine Gun Kelly's on Instagram.