Lindsay Lohan's laughs during anti-drunk driving public service announcement

Days after Lindsay Lohan checked into rehab for the second time, an anti-drunk driving public service announcement Lindsay Lohan filmed two years ago with A Simple Plan popped up.

The blonde beauty laughs her way through the anti-drunk driving public service announcement.

Meanwhile, her lawyer says her 21st birthday bash in Vegas is still on. He tells BWE: “Just because you’re sober doesn’t mean you can’t go out and have fun. Part of sobriety is that you can go out into normal society and just go out. Who say’s you can’t move your boot on the dance floor?�