The annual "Woman of the Year" luncheon will recognize Chenoweth, Gifford and Thomson for their "notable achievements and philanthropic work." Presenters for the event include "Today Show" co-host Hoda Kotb (for Gifford), Promises co-star Sean Hayes (for Chenoweth) and singer Kelly Rowland (for Thomson).

The luncheon, which will also feature a fashion show, will benefit lifesaving research, treatment and education programs at City of Hope, one of the nation's leading cancer research and treatment centers.

In a statement Chenoweth said, "It's an honor to be recognized by a leading institution that helps improve the lives of women with cancer. I'm committed to making this world a better place for patients living with cancer. It is my hope that researchers will be able to improve ways in which we manage the disease and increase the odds at surviving cancer."

Chenoweth, who received a Tony nomination for her work as Glinda in Stephen Schwartz's Wicked, has been seen on the New York stage in The Fantasticks, Scapin, Steel Pier, A New Brain, Epic Proportions, Strike Up the Band, On a Clear Day You Can See Forever, The Apple Tree, Stairway to Paradise and Candide. The actress won her Tony Award for her performance as Sally Brown in the Broadway bow of You're a Good Man, Charlie Brown. Her screen credits include "Four Christmases," "Into Temptation," "Pushing Daisies," "Kristin," "The West Wing," "The Music Man," "The Pink Panther," "Stranger Than Fiction," "Deck the Halls" and "Running with Scissors." Her solo recordings include "Let Yourself Go," "As I Am" and the newly released "A Lovely Way to Spend Christmas." She recently picked up her first Emmy Award for her work in ABC's "Pushing Daisies."

City of Hope is a leading research and treatment center for cancer, diabetes and other life-threatening diseases. For more information, visit www.cityofhope.org.