Fartone's Bitch of a Time

Why is she still in town?

Mischa Barton attended the Guitar Hero party in LA on Saturday, because that’s what she does these days. Instead of acting, Mushy is a professional pAArtygoer!

The Smashing Pumpkins were on hand to give the Guitar Hero partygoers a fun, rocking concert.

A source tells us that while in the VIP area of the party, Mush Mush demanded that security get “all these people away from me.”

In her dreams!

Does she still think she’s hot????

[Image via Adriana M. Barraza/WENN.]