Katie Crutchfield of Waxahatchee relaxes in the west Philadelphia house where her second album, Cerulean Salt, was recorded. Will Figg for NPR hide caption

itoggle caption Will Figg for NPR

The Beatles pose in Liverpool's Derby Square in February 1963 — the year, according to author Colin Fleming, that yielded the band's most definitive work. Michael Ward/Getty Images hide caption

itoggle caption Michael Ward/Getty Images

Brian Johnson (L) and Angus Young of AC/DC in 2000. Johnson's first album with the group, 1980's Back In Black, is one of the best-selling albums of all time, despite never reaching No. 1 on the Billboard album chart. Michele Limina/AFP/Getty Images hide caption

itoggle caption Michele Limina/AFP/Getty Images

Standing before a crowd 250,000 strong, Mick Jagger opened The Rolling Stones' 1969 concert at London's Hyde Park by reading a Percy Bysshe Shelley poem in tribute to late guitarist Brian Jones. Chris Walter/WireImage hide caption

itoggle caption Chris Walter/WireImage

In 2012, Mark Lanegan released the album Blues Funeral. Black Pudding, an album-length collaboration with guitarist and singer Duke Garwood, will come out in May. Sam Holden/Courtesy of the artist hide caption

itoggle caption Sam Holden/Courtesy of the artist

Natalie Maines (center) at Central Presbyterian Church in Austin, Texas during the SXSW Music Festival. Maines's band included her father, Lloyd Maines (seated left) and Ben Harper (seated right). Mindy Best/Getty Images hide caption

itoggle caption Mindy Best/Getty Images

Iron Maiden lead singer Bruce Dickinson samples his band's latest offering, Trooper ale, made with what he calls "our special secret-squirrel recipe." Iron Maiden Beer hide caption

itoggle caption Iron Maiden Beer

Ron Nine, Mitch Ebert, Eden Schwartz, Fiia McGann and Gretta Harley perform in These Streets, a new play based on a series of interviews with Seattle musicians. Courtesy of These Streets hide caption

itoggle caption Courtesy of These Streets

Marcus Mumford of Mumford & Sons, winner of Album of the Year at the 2013 Grammy Awards. To date, the band's winning album, Babel, has sold 1,737,000 copies, according to Nielsen Soundscan. Jason Merritt/Getty Images hide caption

itoggle caption Jason Merritt/Getty Images

Mumford & Sons (from left: Ben Lovett, Marcus Mumford, Ted Dwane and Winston Marshall) accept the award for album of the year at the Grammy Awards on Sunday night. Kevork Djansezian/Getty Images hide caption

itoggle caption Kevork Djansezian/Getty Images

The Killers perform on the season finale of NBC's The Voice last week. NBCU Photo Bank via Getty Images hide caption

itoggle caption NBCU Photo Bank via Getty Images