Jay-Z, School House Rock and Cyndi Lauper are among recordings the Library of Congress is preserving
(CNN) -- The Library of Congress has added 25 recordings to its National Recording Registry that it calls "audio treasures." They include albums from Jay-Z and Cyndi Lauper, a speech by Robert F. Kennedy, a Schoolhouse Rock! boxed set and Neil Diamond's "Sweet Caroline." Each year, the Librarian of Congress selects 25 recordings for the registry that are "culturally, historically, or aesthetically significant," and are at least 10 years old. It now includes 525 titles from the library's collection of almost 3 million pieces of recorded sound.