Pete Seeger was an environmentalist, an activist and the most prominent folk musician of his generation. Neilson Barnard/Getty Images hide caption

toggle caption Neilson Barnard/Getty Images

Composer and bandleader Maria Schneider accepts her Grammy Award. Her album Winter Morning Walks earned three awards yesterday at the pre-telecast Grammy ceremony in Los Angeles. Michael Buckner/Getty Images hide caption

toggle caption Michael Buckner/Getty Images

Daft Punk won the Grammy for Album of the Year for Random Access Memories and for Record of the Year for "Get Lucky." Frederic J. Brown/AFP/Getty Images hide caption

toggle caption Frederic J. Brown/AFP/Getty Images

Mastering engineer Emily Lazar poses with producer Scott Jacoby (top right) and members of the band School is Cool at her Manhattan studio, The Lodge. The Lodge hide caption

toggle caption The Lodge

Mexican artist Pedro Reyes received 6,700 weapons from the Mexican government, from which he sculpted instruments. Peter Macdiarmid/Getty Images hide caption

toggle caption Peter Macdiarmid/Getty Images

The American band San Fermin performs an informal "Take Away Show" in a Chinese restaurant in Paris — part of a series of videos produced by the French website La Blogothéque. Christopher Werth/Courtesy of the artist hide caption

toggle caption Christopher Werth/Courtesy of the artist

Recording Academy President and CEO Neil Portnow, host LL Cool J and Executive Vice President of Specials, Music and Live Events at CBS Entertainment Jack Sussman pose at the Staples Center in Los Angeles on Jan. 23, a few days before the 2014 Grammy Awards. Kevin Winter/WireImage hide caption

toggle caption Kevin Winter/WireImage

Guitarist Kirk Hammett (left) and his band Metallica will join classical pianist lang Lang on stage at the Grammy wards telecast Sunday night. Getty Images/Courtesy of the artist hide caption

toggle caption Getty Images/Courtesy of the artist

This police booking mug made available by the Miami Dade County Corrections Department shows pop star Justin Bieber on Thursday (Jan. 23, 2014). AP hide caption

toggle caption AP

Celebrated conductor Claudio Abbado in 1979 in his native Milan, during his tenure as music director of the city's famed opera house, La Scala. Giorgio Lotti/Mondadori/Getty Images hide caption

toggle caption Giorgio Lotti/Mondadori/Getty Images

NPR thanks our sponsors

Become an NPR sponsor