Katharine McPhee is Pregnant

American Idol alum Katharine McPhee pulls at her faux baby bump during a filming break of the I Know What Boys Like on Tuesday in Los Angeles.

This will be McPhee‘s studio acting debut for Columbia Pictures and Happy Madison. She will be playing a pregnant hippy in the Fred Wolf-directed comedy.

In the near future, Kat, 23, will also be starring in The Last Caller, a dark romantic-comedy indie.