Slender songstress Taylor Swift may now officially be off the market, the star was spotted hand in hand with music producer Calvin Harris. The pair were seen leaving a HAIM gig at the Troubadour in LA. With Taylor Swift's love life often featuring in her songs we are wondering in Calvin is the next beau to offer the singer some inspiration. Both artists have previously had some famous couplings with Harris linked to Rita Ora and Swift to John Mayer and Harry Styles.