Katharine McPhee Showcases Her Ample Cleavage And Pert Posterior In Stringy Black Two-Piece

She was runner-up when she starred in the fifth series of American Idol in 2006.

But Katharine McPhee proved she has a winning figure when she donned a tiny black two-piece to soak up the rays in Cabo San Lucas, Mexico, on Friday. 

The 31-year-old star was sure to turn some heads as she hit the white shores in the stringy design, which was lined with a pretty frilled hem. 

Showcasing her toned stomach in the bikini, the Scorpion actress also gave onlookers a glimpse of her pert posterior as she rocked a Bond girl moment whilst stepping out of the crystal blue waters.

Peep for more photos after the cut...