Katy Perry looked phenomenal as she posed up a storm on the red carpet in Nashville, Tennessee on Wednesday night.MORE: Katy Perry slips into a swimsuit for photo featuring her lookalike momThe 37-year-old was among the many stars who headed to the Country Music Association Awards, cutting a stylish figure in caramel brown Vivienne Westwood leather dress.WATCH: Katy Perry and Miranda Kerr spend the day together at new launchThe statement gown was cinched in at the waist and featured a