The Library of Congress has added 25 recordings to the national registry called "audio treasures". Cyndi Lauper, Jay-Z, Neil Diamond's "Sweet Caroline" and School House Rock all made the cut. So did a speech by John F. Kennedy. The oldest recordings in the archive are Yiddish songs from 1901 and the registry also includes recordings of the native languages of tribes in the Pacific Northwest. You can check out everything in the archive through the national Jukebox.