Celebrity follies monopolize entertainment circuit

Where exactly is the line between stardom and celebrity? Moreover, why do we even care? I’ve wondered that since I was 9 or 10 years old, but the question has been on my mind since about this time last year when it took a homicidal rampage at Virginia Tech University to get “news” shows to stop talking about Don Imus’ runaway mouth and Anna Nicole Smith’s baby’s daddy mystery.