Which famous rapper's real name is Earl Simmons?

why did this person changes name to DMX?

Tiffany, I'm so glad he got saved this is the best thing that :happened to him. now he will go home when the time comes.

wow but I got it on my first try cuz I knew it wasn't Biggie or Dre order the others leavening DMX the lonely one for me to pick I hope it gets life together and stayed in the Bible