has a new ad that features 'Gossip Girls' stars urging young viewers to tell their parents to vote for Barack Obama.

Penn Badgley and Blake Lively, who star in The CW teen drama, appear in the spot along with other young actors. It's a take-off on the public service announcements in which parents profess to talk straight to their kids about a controversial issue. But instead of cautioning people against drugs or drunk driving, the actors warn against voting Republican.

The spot will air during "Gossip Girls" and on MTV and Comedy Central. Underscoring the new electoral map, MoveOn also plans to air the ad in college towns in North Carolina and Nevada, two states won by President Bush in 2000 and 2004.

Read the script and watch the ad below.

Talk to Your Parents - 30 seconds script

Penn Badgley: Mom? Dad? I found THIS in your room (holds up a Drill Baby Drill! hat).

Young person: Are you thinking about voting for John McCain?

Young person: Just because other people your age are doing it, doesn't make it cool.

Young person: You say it's harmless, it's "just one vote".

Young person: Voting republican even once can have disastrous effects that last for years.

Young person: You're not only risking your future, you're risking mine.

Penn Badgley: Talk to your parents about John McCain.

Young person: For my sake? Please?

Young person: Vote for Barack Obama.

Young person: Before it's too late.

VO: Political Action is responsible for the content of this advertisement.

Blake Lively: And if you're ever out somewhere and you're considering voting McCain, just call me. I'll pick you up. No questions asked.