The Mountain Jam 2013 lineup has been finalized, and come June 6-9, everyone from Springsteen-style Jersey punks (the Gaslight Anthem) and jam-band heroes (Widespread Panic, Phil Lesh & Friends) to reggae-tinged truth speakers (Michael Franti & Spearhead) and indie-approved rock and Americana acts (the Lumineers, Dispatch and the Avett Brothers) will hunker down at the Hunter Mountain ski resort in Hunter, N.Y., for four days of outdoor fun. Tickets are on sale now, but one lucky reader won't have to pay. Why not? Because we're teaming up with Mountain Jam to give away a pair of 4-day passes, complete with camping. To enter, all you've got to do is retweet the contest announcement and follow @diffuserfm and @mountainjam on Twitter. Read on for more info.

Now in its ninth year, Mountain Jam combines choice tunes with gorgeous views, and this year's installment ups the ante with delicious eats from local food trucks and special car-side camping. For hardcore music fans, however, the real draw remains the eclectic lineup. In addition to the acts mentioned above, the 2013 go-round boasts Big Gigantic, London Souls, Gov't Mule, Primus, Deer Tick, Gary Clark Jr., Soulive with the Shady Horns, Kung Fu, Futurebirds, Swear and Shake, Roadkill Ghost Choir, Bill Evans’ Soulgrass, Alecia Chakour Band, Michael Bernard Fitzgerald, the 4onthefloor, Filligar, Todd Wolfe Band, Jay Collins & the Kings County Band and the Christine Spero Group, Jackie Greene, Deer Tick, ALO, Rubblebucket, the Amy Helm Band, Nicki Bluhm & the Gramblers, the Revivalists, David Wax Museum and Simo.

For your chance to win a pair of 4-day passes for Mountain Jam 2013, follow @diffuserfm and @mountainjam on Twitter and re-tweet the announcement of the giveaway -- which you can get to by clicking the big button below -- by 11:59 PM EST on April 1, 2013. We’ll choose a winner at random. (Full contest rules here.) Good luck!