CBS: One of the major factors likely to play a large role in the outcome of the presidential race Tuesday is the turnout of young voters.

Rock the Vote knows all about that. The organization says it "works with artists to grab the attention of young people," focusing on registering them to vote and getting them to head for the polls on Election Day. It tries to engage them via free text messages with voting reminders, polling place locators, election news and more.

"Whether it's Madonna wrapping herself in the flag for the first Rock the Vote PSA or Snoop Dogg launching our bus tour in 2004, Rock the Vote works with artists who really believe in and promote our mission," the group says.

RTV blew away its ambitious goal of registering 2 million young voters this election cycle, reaching 2.5 million.