Katharine McPhee | PEOPLE.com

Jane Lynch Talks Her Return to The Marvelous Mrs. Maisel on PEOPLE Now — Watch the Full Episode

Katharine McPhee and David Foster Open Up About Their Love

David Foster and Katharine McPhee

Katharine McPhee Jokingly Tells Fiancé David Foster's Daughter 'Mommy and Daddy Need Alone Time'

Katharine McPhee Admits She Didn’t Know Who David Foster Was Before She First Met Him

Anna Faris in The House Bunny.

Anna Faris and Katharine McPhee Celebrate The House Bunny's 10th Anniversary in Sweet Instagrams

Smash-ing Reunion! Katharine McPhee and Megan Hilty Together Again at Broadway's Waitress

Engagement Rings

Katharine McPhee Reveals Engagement Ring: 'The Last Thing I Showed My Dad Before He Passed'

David Foster's Daughters Erin and Sara 'Love' His Fiancée Katharine McPhee: Source

David Foster and Ex Yolanda Hadid 'Don't Talk' Amid His Engagement to Katharine McPhee: Source

Katharine McPhee's Dad Dies Just Weeks After Her Engagement: 'My Heart Will' Never 'Be the Same'