Katharine McPhee says she is 'at peace' with her body after giving birth to son Rennie

Katharine McPhee Shares How Baby Rennie Gave Her "Gift" of Being "at Peace" with Her Body

Katharine McPhee: Son Rennie Is a 'Good Combination' of Me and David Foster

Katharine McPhee busts a move during Zumba event for World Health Day