Katharine Hope McPhee Foster (born March 25, 1984) is an American pop singer, songwriter and actress. She gained fame as the runner-up on the fifth season of American Idol in May 2006.
Her eponymous debut album was released on RCA Records on January 30, 2007, and debuted at number two on the Billboard 200, selling 381,000 copies (as of December 2010). The album's first single, "Over It", was a Pop Top 30 hit and was certified gold in 2008. Her second album, Unbroken, was released on Verve Forecast Records on January 5, 2010, and debuted at No. 27 on the "Billboard 200". The album featured the single "Had It All", which peaked at number 22 on the AC chart.
Her third album, the holiday-themed Christmas Is the Time to Say I Love You, was released on October 12, 2010. The album debuted at number 11 on the Billboard Top Holiday Albums chart, while the single "Have Yourself a Merry Little Christmas" peaked at number 16 on the "Billboard" AC chart. McPhee released her fourth album, Hysteria, on September 18, 2015. She released her fifth album, I Fall in Love Too Easily, composed of jazz standards, on November 17, 2017.
She has also established an acting career, co-starring in The House Bunny, Shark Night 3D, and The Tiger Rising (2022). She starred as Karen Cartwright on the NBC series Smash, as Paige Dineen on the CBS series Scorpion, and as Bailey on Netflix's Country Comfort (2021).
She made her Broadway debut in the musical Waitress, taking over the role of Jenna in 2018 and again in 2019-2020 and also starred in the role in London's West End in 2019.

Andrea Bocelli 30: The Celebration
2024

The Jennifer Hudson Show
Self · (1 episode)
2022

Sherri
Self - Guest · (1 episode)
2022

The Tiger Rising
Caroline Horton
2022

Country Comfort
Bailey · (10 episodes)
2021

Celebrity Wheel of Fortune
Self - Contestant · (1 episode)
2021

I Can See Your Voice
(1 episode)
2020

Bombshell in Concert
2020

Intensive Care
Kate Richards
2020

Stars in the House
Self · (1 episode)
2020

David Foster: Off the Record
Self
2019

The Masked Singer
Banana Split - Ice Cream · (1 episode)
2019

The Masked Singer
Self · (1 episode)
2019

Katharine McPhee: Live On Soundstage
2018

Bayou Caviar
Shelly
2018

American Idol
Self · (1 episode)
2018

The Lost Wife of Robert Durst
Kathleen “Kathie” McCormack
2017

Stayin' Alive: A Grammy Salute to the Music of the Bee Gees
Self - Performer
2017

Sinatra 100: An All-Star Grammy Concert
Self
2015

In My Dreams
Natalie Russo
2015

Lip Sync Battle
Self · (1 episode)
2015

Comedy Central Roast of Justin Bieber
Self
2015

The Late Late Show with James Corden
Self · (1 episode)
2015

Scorpion
Paige Dineen · (93 episodes)
2014

Smash
Karen Cartwright · (32 episodes)
2012

Peace, Love & Misunderstanding
Sara
2011

Shark Night 3D
Beth
2011

You May Not Kiss the Bride
Masha Nikitin
2011

Community
Amber · (1 episode)
2009

Chris Botti in Boston
Self
2009

Hit Man: David Foster & Friends
Self
2008

The House Bunny
Harmony
2008

Crazy
Paramount Girl
2008

Ugly Betty
Katharine McPhee · (1 episode)
2006

CSI: NY
Odessa Shaw / Dana Melton · (1 episode)
2004

The Soup
Self · (1 episode)
2004

The Ellen DeGeneres Show
Self · (1 episode)
2003

Jimmy Kimmel Live!
Self · (2 episodes)
2003

VH1 Top 20 Video Countdown
(1 episode)
2003

Dr. Phil
Self · (1 episode)
2002

American Idol
Self - Guest Performer · (1 episode)
2002

The Early Show
Self · (2 episodes)
1999

Family Guy
Mother Maggie (voice) · (1 episode)
1999

The Tonight Show with Jay Leno
(2 episodes)
1992

LIVE with Kelly and Mark
Self - Guest · (4 episodes)
1988
Christmas in Washington
Self · (1 episode)
1982

Entertainment Tonight
Self · (2 episodes)
1981

Great Performances
Self · (1 episode)
1971

Today
Self · (1 episode)
1952