Keith Urban -- Itsy Bitsy Teenie Weenie Black Bikini

Keith Urban celebrated his birthday by stuffing his 45-year-old country bits into a tiny pair of man panties in France this weekend.

The Australian singer took a break from keeping Mariah Carey and Nicki Minaj from killing each other at "American Idol" auditions to flash his wet, toned and tatted up torso at a hotel pool.

Mr. Nicole Kidman is the whole package.