The video clip of the song the premiered in the pre-show of 2015 MTV Video Music Awards was released by which record label ?
2015 MTV Video Music Awards: The 2015 MTV Video Music Awards were held on August 30, 2015. 2015 MTV Video Music Awards:  Swift's "Wildest Dreams" music video premiered during the pre-show. Wildest Dreams (Taylor Swift song):  The song was released to radio by Big Machine Records on August 31, 2015, as the album's fifth single.
Big Machine Records