Free Sheryl Crow Download for Vote

Sheryl Crow is offering free music, and all she wants in return is a vote.

The singer is giving away a free download of her politically charged tune "Gasoline" to anyone who logs onto the Rock the Vote Web site, or anyone on the group's mailing list.

And the first 50,000 people who register three friends to vote will get a free digital copy of her album "Detours."

Crow says she wants people to "wake up and emotionally engage in issues."

The giveaway is a kickoff to Rock the Vote's voter registration drive. The 46-year-old Crow was one of the founding artists of Rock the Vote 18 years ago.

The organization aims to register two million young people to vote by November.