Pam Anderson -- Partying Like a Trooper

While in Buenos Aires, Pam Anderson turned to the dark side ... and partied the night away wearing a "Star Wars" Storm Trooper mask recently.

The force is strong with that one.

Party Time!

• Lindsay Lohan -- House Arrest Roof Party!!!
• Dallas Mavs -- Partying Where Bron's Mom Was Busted
• Oprah's HUGE Finale Party -- Seinfeld, Hanks, Stevie!