What American idol runner-up stars on Smash?
Katharine McPhee Katharine Hope McPhee (born March 25, 1984) is an American actress, singer and songwriter. She gained fame in May 2006 as the runner-up on the fifth season of "American Idol."
Publicity (Smash) "Publicity" is the twelfth episode of the American television series, "Smash". The episode aired on April 23, 2012.