Greydon Square (born Eddie Collins on September 28, 1981) is an American hip hop artist. He is a veteran of the Iraq War and an outspoken atheist who promotes discussion on philosophical issues, as well as studying full time.
Collins, grew up in Compton, California, where he was raised as an orphan and became immersed in gang culture. In May 2001, he enlisted in the United States Army. He went on to serve in the Iraq War in March 2004. After returning from Iraq, Collins began attending college in Phoenix, Arizona as a physics major. It was at this time that he began questioning his prior religious beliefs and became an atheist, posting videos on YouTube. He has appeared in several television documentaries and radio shows, and his music has attracted fans such as Penn Jillette and Richard Dawkins. He is also a member of the international secular hip-hop activist movement, The Anti-Injustice Movement (aka The AIM) and may be planning a UK tour.