Bradley Cooper brought a special someone with him to a weekend event.

The 44-year-old actor and director made a very rare public appearance with his 2-year-old daughter, Lea De Seine, on Sunday at the 22nd annual Mark Twain Prize for American Humor event in Washington, D.C.

For the outing, Cooper wore a black suit with a white button-down shirt, while Lea wore a patterned shirt paired with a black skirt, white tights and a blue vest.

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Bradley Cooper with Lea at the weekend event in D.C. (Paul Morigi/Getty Images)

In one photo, the father-daughter duo was photographed watching the event and in another picture, Cooper is spotted sweetly holding his daughter.

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According to Entertainment Tonight, Cooper was on and to help honor his friend and "Star Is Born" co-star Dave Chappelle, who was honored for lifetime achievement in comedy.

Bradley Cooper and his daughter at the Kennedy Center event. (Photo by Owen Sweeney/Invision/AP)

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Cooper shares Lea with ex Irina Shayk. The former couple started dating in 2015 and welcomed their daughter in March 2017. Cooper and Shayk called it quits after four years together this past June.