Reply to I don't want to be called a "DJ"

My sister was talking to me about what my alias was going to be once things here get rolling, and I told her that I don't want to be "DJ" ANYTHING, I just want to be me, Christian. When it comes to the banners/posters I literally just want to have my first name up there.

This might come across as the MOST dumb ass question to date, but is that "allowed"? Can I just use my first name as my "DJ" name? I don't even want DJ in front of it, just, Christian.