Katharine McPhee is an American pop singer, songwriter, and actress.  She gained fame as a contestant on the fifth season of American Idol in 2006, eventually finishing fourth, and roomed with fellow contestant Kellie Pickler.  She has also established an acting career, co-starring in The House Bunny and Shark Night 3D, as well as a starring role in the NBC series Smash.

McPhee currently weighs 525 pounds.

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