Long story. Its a Zero, Not an O.
I made this name back when Halo 2 first came out and I go Xblive. I was really eager to play So I just put in the first thing that came to my mind, 123 ur dead. Unfortunatly you can't start a Gamertag with a Number. So, well abc easy as 123. so abc ur dead. I then added the Zero just to have a number in there. Turns Out I was stuck with my stupid name. Then 360 rolls around 2 years later. I Could change my name now. Thing was I Had grown accustomed to my name, and was starting to get SOME recognition. Its a very unique name and I get asked about it alot. The only thing I hate about it is the damn peoplke singing that song. abc, easy as 123, do rey me, abc, 123 baby you and me. God its annoying.
But It works, unique name and alot of people remember it.