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Pregnant Katharine McPhee & David Foster Perform 'The Prayer' Together

David Foster and Katharine McPhee
Ian Tuttle/Getty Images for Breakthrough Prize

David Foster and Katharine McPhee attend the 2020 Breakthrough Prize Red Carpet at NASA Ames Research Center on Nov. 3, 2019 in Mountain View, Calif.

Katharine McPhee and David Foster made their first professional appearance as a couple since news broke that the duo are expecting their first child together.

They joined the Go Gala over the weekend, held by the GO Campaign, which helps orphans and vulnerable children around the globe. "We're so happy and proud and honored to be a part of the GO campaign," Foster said at the event. "Anything to do with children has got my attention immediately, as well as my wife's."

"You're being a little bit humble," McPhee interjected, "but David has spent his life creating his own foundation for kids struggling with transplants, so anything to do with children, we are in and you are definitely in because that's what you've devoted your charity life to."

The duo performed Foster's "The Prayer," with McPhee at the microphone and Foster at the piano.

The couple first met back in 2006, when Foster mentored McPhee and other contestants on American Idol. They got married in June 2019 at the Church of Saint Yeghiche in the South Kensington district of West London.

Watch the performance below, beginning at the 1:23:18 mark.