Katharine McPhee & David Foster Couple Up for Breakthrough Prize 2019

Katharine McPhee keeps close to husband David Foster as they arrive at the 2019 Breakthrough Prize Ceremony at the NASA Ames Research Center in Mountain View, Calif.

The 35-year-old singer/actress looked so chic in a light blue gown as they 70-year-old music producer sported a handsome navy tux for the event.

PHOTOS: Check out the latest pics of Katharine McPhee

Also in attendance at the event was Lenny Kravitz, who performed during the ceremony.

Make sure you check out Katharine‘s sweet birthday message to David here!

10+ pictures inside of the stars at the event…