What the hell's up with young Hollywood starlets these days?! Just a day after Lindsay is charged with DUI, Mischa Barton is reportedly carried away from a Memorial Day party on a stretcher!?! TMZ are reporting that the "O.C" star collapsed at a party after a delicious cocktail of antibiotics and alcohol.

X17 photogs caught up with Mischa and pal Nicole Richie getting Starbucks and grocery shopping before the big blowout and then spied the girls entering the same neighborhood where Richie's father has a house and where, coincidentally, Britney Spears lives.

We stuck around until after dark and never saw an ambulence leave the neighborhood nor did we see either Mischa or Nicole leaving, though the report says Mischa was rushed to a local hospital where she received treatment and is now "resting comfortably."