In the latest ad for SmartWater, already going viral on YouTube, spokeswoman Jen Aniston says, "I'm here to talk to you about SmartWater, but in this day and age, I can't do that, can I? I have to make a video, apparently, that turns into a virus."

See Jen's Hair Evolution!

Aniston also approves anything that will give the ad more views, including kicking someone in the crotch and calling the would-be viral video "Jen Aniston's Sex Tape."

Jen Through the Years