HOLLYWOOD - Lindsay Lohan wasted no time hitting the town after having her appendix taken out--she was seen partying in Hollywood just days after undergoing surgery.

The Mean Girls star had her appendix removed on Thursday and was photographed leaving a Los Angeles hospital on Friday morning.

According to veteran Hollywood gossip columnist Janet Charlton, Lohan was seen dancing with blink-182 drummer Travis Barker until 5 a.m. Saturday morning at a West Hollywood party.

Lohan was also seen drinking a clear substance from a water bottle and smoking in between dances.