It’s hard out there for a Jackson. First, they all had to grow up with a douche of a father. Then they all had to overcome the scars from that only to live in the limelight of a brother who was awesome and then completely lost his mind. Now, they have to deal with the bitter in-fighting in the aftermath of that brother’s tragic death.
Given all that, it’s not surprising that Jermaine has decided he can no longer be a Jackson. So of course he’s changing his name.