Janet Jackson’s 1989 album Rhythm Nation 1814 leads the 2020 class of the Library of Congress’s National Recording Registry. Other highlights among the inductees include Nas’s Illmatic, Louis Armstrong’s “When the Saints Go Marching In,” Labelle’s “Lady Marmalade,” Flaco Jiménez’s “Partners,” Franklin Roosevelt’s 1941 Christmas Eve radio address with Winston Churchill, Leontyne Price’s Aida, Kermit the Frog’s “The Rainbow Connection,” and the first podcast, a 2008 episode from This American Life about the mortgage crisis then sweeping the country.