"Not One Day" is an unreleased song by American singer and songwriter Taylor Swift, although the song hasn't leaked and little is known about it.[1]
Background[]
In support of Swift's seventh studio album, Lover, Swift collaborated with Target and released four deluxe editions of the album. Each deluxe edition contained a number of Swift's old journal entries. In an entry from May 17, 2003, Swift mentioned the titles of two songs - "Not One Day" and "Smokey Black Nights".