Swift released her fifth studio album, "1989," on Oct. 27, 2014. The album, which is named for the year Swift was born, finds her focusing more than ever on a pop music sound. The first single from the album, "Shake It Off," was released on Aug. 18, 2014, and debuted at No. 1 on the Billboard Hot 100 chart. It was her second No. 1 hit after 2012's "We Are Never Ever Getting Back Together."