Most capitalized adjectives are derived from proper nouns; for example, the proper adjective American is derived from the proper noun America. Sometimes, an adjective is capitalized because it designates an ethnic group with a shared culture, heritage, or ancestry.
 Steppin' Out  is a song written by Joe Jackson, originally included on his 1982 album Night and Day.
Jimmy Fallon, Idina Menzel, Perform 'Let It Go' With Kids' Instruments. More News. It's safe to assume when Idina Menzel first sang her Academy Award-winning song Let It Go from Frozen, she didn't expect to be performing the track with Jimmy Fallon, the Roots and a set of children's instruments. But here we are.