Top row, left to right: Laura Marling, Lorde, Mike Milosh of Rhye; middle row: Ty Segall, James Blake, Valerie June; bottom row: Khaela Maricich and Melissa Dyne of The Blow, Earl Sweatshirt, Lou Reed. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Clockwise from upper left: Paul McCartney, King Khan & The Shrines, Moby, Tim Hecker. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Carrie Brownstein and Fred Armisen, both veteran musicians, are the stars of the IFC comedy series Portlandia. Chris Hornbecker/IFC hide caption

itoggle caption Chris Hornbecker/IFC

Clockwise from left: Paul McCartney circa 1970, Jeff Tweedy of Wilco, Gillian Welch. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists

Rave On Buddy Holly, a tribute to the rock 'n' roll pioneer, features Holly covers by Paul McCartney, The Black Keys, Patti Smith and many more. The album comes out June 28. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images