Reese Witherspoonis radiant on the red carpet!

It was her first public appearance since sheannounced her divorcefrom Jim Toth on March 24.

Dressed in a one-shouldered black cocktail gown with lacy cutouts, Witherspoon appeared happy and enthusiastic at the event, brightly interacting with other attendees. She paired the dress with matching black pumps, studded hoop earrings and a big smile.

Reese Witherspoon.Leon Bennett/Getty Images

Reese Witherspoon attends the Apple TV+ “The Last Thing He Told Me” premiere

Witherspoon and Tothofficially filed for divorceon March 30 after 12 years of marriage. In their joint statement announcing their divorce, Witherspoon and Toth, 52, said they reached the “difficult decision” after “a great deal of care and consideration.”

A source told PEOPLE that the two “really are the best of friends,” adding: “This is such an amicable decision. They are so committed to co-parenting together. They are invested in their whole family and making this as smooth as possible for everyone.”

Jim Toth and Reese Witherspoon.Todd Williamson/NBC/NBCU Photo Bank via Getty

BEVERLY HILLS, CALIFORNIA - JANUARY 05: 77th ANNUAL GOLDEN GLOBE AWARDS – Pictured: (l-r) Jim Toth and Reese Witherspoon arrive to the 77th Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 5, 2020. – (Photo by: Todd Williamson/NBC/NBCU Photo Bank via Getty Images)

Reese Witherspoon.Alberto Rodriguez/GA/Getty

LOS ANGELES, CALIFORNIA - APRIL 13: Reese Witherspoon attends the Apple TV+ “The Last Thing He Told Me” premiere at Regency Bruin Theatre on April 13, 2023 in Los Angeles, California. (Photo by Alberto Rodriguez/GA/The Hollywood Reporter via Getty Images)

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source: people.com