Nicole Scherzinger certainly turned up the heat this Valentine's Day.MORE: Nicole Scherzinger unrecognisable with blonde hair and risqué sheer dressThe 43-year-old singer took to Instagram to share a stunning photograph with her fans in honour of the occasion.WATCH: Nicole Scherzinger slips into tiny string bikini on Caribbean getawayNicole can be seen showcasing her toned figure in a red sequinned handkerchief top teamed with a matching skintight skirt.READ: Nicole Scherzinger's bikini body is incredible - here are her fitness secretsMORE: Thom Evans gets fans talking with baby photosHer long dark hair has been styled in glamorous bouncy waves and she completed her look with a bold red lip and sparkling hoop earrings. "Happy Valentine's Day beauties," she wrote.