Carrie Underwoodis proving once again she's her own best advert, as she modeledher apparel line CALIA on Saturday.The 37-year-old oldcountry music superstartook to her Instagram to share aphenomenal mirror selfie of herself in asporty bikini, which showcased her gym-honed abs.'First day of summer!' the seven-time Grammy winner captioned the sultry snap inside her massive walk-in closet.
Tanned and toned: Carrie Underwood is proving once again she's her own best advert, as she modeled her apparel line CALIA on SaturdayAs she slipped into a modest black and white swimsuit, the Before He Cheats hitmaker posed up a storm with one hand on her hip and her gorgeous gams on full display.