On her 12th original album, the pop superstar sounds hungry to embrace her future — but not until she attends to some unfinished business.

The pop star and the Swedish producer connected on her 2012 LP, “Red.” They’ve reunited (with his collaborator Shellback) for “The Life of a Showgirl.”

Swift, who returns with her 12th album in the guise of the ultimate iconic performer, is the latest pop star to take on the 19th-century tradition