Which song released on October 2, 2012 was re-issued as an official single. 
State of Grace (Taylor Swift song):  It was the only promotional single from the album that was not re-issued as an official single, as "Begin Again", "Red", and "I Knew You Were Trouble", were all later re-issued as official singles. Red (Taylor Swift song):  It was released on October 2, 2012, in the US by Big Machine Records as the second promotional single from "Red" in 2012 and serves as the album's fifth single on June 21, 2013.
Red