The soundtrack to Montage of Heck, the authorized Kurt Cobain documentary premiering May 4 on HBO, will feature a previously unreleased 12-minute Cobain song recorded alone with an acoustic guitar. The film's director describes the track as "mind-blowing," but the album's release date has not yet been announced. (Rolling Stone)

Randall Miller, the director of the aborted Gregg Allman biopic Midnight Rider, has pleaded guilty to involuntary manslaughter and criminal trespass in the case of Sarah Jones, a camera assistant on the film who was killed after being struck by a train during filming. (Billboard)

Ryan Adams has a new 7", "Blue Light," coming out later this month—and he's described the music in exhaustive detail. (Stereogum)

Raekwon and Ghostface Killah will review your mixtape if you contribute $200 to the new Raekwon documentary. (Pitchfork)

Jim Irsay, a guitar collector who also happens to be the owner of the Indianapolis Colts, has paid $530,000 for the guitar John Lennon played on the Beatles' "Paperback Writer." (Rolling Stone) If he has any budget left, maybe he'll want to pick up some of the famously eccentric guitars owned by Rick Nielsen of Cheap Trick; Nielsen is currently auctioning some of his axes, but he won't be left high and dry when it comes time to tour, since he owns over 400 guitars. (Rolling Stone)

As controversy continues to swirl around the name of rapidly-rising indie band Viet Cong, they've been defended by Andy Gill of Gang of Four—a band that's also seen controversy around its name, which was inspired by a group of Chinese who were accused of "counter-revolutionary" activities in the 1970s. Gill says "it's a little ridiculous to ban bands for their name." (Brooklyn Vegan)

Miley Cyrus's controversial but iconic "Wrecking Ball" video pose has been immortalized in wax at the Madame Tussauds museum in Las Vegas, which discreetly opted to depict the most-clothed version of Cyrus from the infamous Terry Richardson video. (Billboard)

"Eventually 3D printing will print people," will.i.am fears. "That's scary." He clarifies, though: "I'm not saying I agree with it." (Stereogum)