Katharine McPhee: Sister's Wedding in L.A.!: Photo 2668218, Katharine McPhee Photos

Katharine McPhee celebrates one year of marriage to David Foster

Katharine McPhee's Wedding Reception Dress: Dons Strapless Blue

See Katharine McPhee and David Foster's 'Perfect' Wedding Album!

Katharine McPhee: Sister's Wedding in L.A.!: Photo 2668218

Katharine McPhee's Wedding Reception Dress: Dons Strapless Blue

Katharine McPhee wedding EXCL: Star stuns in ruffled gown as she

Katharine McPhee, David Foster Celebrate Evening Wedding

Katharine McPhee Smashes it as maid of honour at her sister's

Katharine McPhee Is The Matron Of Honor In Her Sister's Wedding