Even if you have never seen one porn movie ever, you still probably know who Jenna Jameson is. Most likely the most famous porn star of them all. Her real name is Jenna Marie Massoli, but she legally had her last name changed to Jameson. She started off as a dancer beforing doing her first pornographic film in 1993. Since then, everything she touches, turns into gold. She has started and sold her own adult film production company. She had a New York Times best seller with her autobiography, How to Make Love Like a Porn Star: A Cautionary Tale.