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.
And the 25-year-old singer did not disappoint at her Halloween show in Tampa, Fla. Swift emerged on stage dressed as Olaf the snowman from Frozen before bringing out Idina Menzel to sing Let It Go, the hit song from the 2013 animated film. Menzel was dressed as Elsa, the character she voiced in the movie. Thank you @taylorswift13! That was definitely an out of body experience.