Conan O'Brien, Phil Lesh, Pearl Jam Lead New Voting Campaign

Stephen Colbert, Kings of Leon, Gregg Allman, Beck also contribute to HeadCount's #GoVote, featuring celebrity photos with catchy captions

Conan O'Brien, Phil Lesh and others lead HeadCount's #GoVote campaign, encouraging fans to participate in upcoming presidential election. Credit: Christopher Polk/WireImage/Getty, Larry Hulst/Michael Ochs Archives/Getty

With the presidential election only eight days away, musicians and celebrities like Conan O'Brien, Phil Lesh and Greg Allman are encouraging fans to vote as part of HeadCount's #GoVote campaign. Stephen Colbert, Kings of Leon, Pearl Jam, Beck, James Franco, "Weird" Al Yankovic, the Black Keys, Questlove, Dave Matthews and the National also contributed to the initiative, posting photos of themselves holding "Go Vote" signs.

Russell Simmons, Jack Johnson, Jason Mraz, Panic! at the Disco, Linkin Park, Quincy Jones, Alan Cumming, Esperanza Spalding, Nick Offerman, Widespread Panic, and Dead & Co. also participated in the sprawling campaign, among others. 

Some of the photos include unique captions, including Colbert's ("Vote: the safe legal way to overthrow the government") and Lesh's ("Bad politicians are elected by good people who don't vote"). A full gallery is available at the HeadCount Facebook page

The #GoVote campaign caps off a record-breaking year for HeadCount, who used social media and concerts as platforms to help reach Millennial voters. The nonpartisan group registered over 150,000 new voters for this election, staging voter registration drives at over 1,500 live music events, including national tours by Dave Matthews Band, Phish, Dead & Co., the Dixie Chicks and Warped Tour.

HeadCount will wrap up the campaign on election night by hosting their "Soundtrack to History" concert at New York's Brooklyn Bowl, featuring all-star jam band Everyone Orchestra. The group will include conductor Matt Butler alongside members of Phil Lesh and Friends (Steve Kimock), the Disco Biscuits (Marc Brownstein, Aron Magner), moe. (Vinnie Amico), Snarky Puppy (Jay Jennings, Chris Bullock), Big Gigantic (Jeremy Salken) and Trey Anastasio Band (Natalie Cressman); Jans Ingber, Mihali Savoulidis and as-yet-unannounced special guests.