Two years before her arrest on suspicion of driving under the influence, Lindsay Lohan taped a PSA warning about the dangers of driving drunk.
In one of the takes, posted on TMZ.com, Lohan laughs after a member of the pop group A Simple Plan says "please don't drink and drive."
Lohan ends the PSA by saying "be safe" and giving the peace sign.
Lohan is now in rehab. Her father tells E! she's being treated for a problem with alcohol and the painkiller OxyContin.
Last weekend, she was in a car crash and arrested for suspicion of driving under the influence.
Authorities are investigating whether the actress, who turns 21 on July 2, was served alcohol at some of the trendy night spots she frequents.
Photos: The Scene Of Lindsay's Crash
Lohan told Ellen DeGeneres earlier this month that she planned to celebrate the milestone birthday in Las Vegas.