Kelly Clarkson was spotted arriving at LAX in her first somber public outing since the death of her ex-husband , Brandon Blackstock.

In photos obtained by Page Six, the “American Idol” winner wore head-to-toe black, including a wide-brimmed cowboy hat and sunglasses, while arriving at the international hub with her sister Alyssa and kids, River, 11, and Remington, 9, in tow.

The “Kelly Clarkson Show” host kept a serious expression as she hoisted luggage and made her way into the airport.

Clarkson, 43, hasn’t been seen since since news broke that her ex-husband died at age 47 on Aug. 7, following a private, years-long battle with melanoma .

“It is with great sadness that we share the news that Brandon Blackstock has passed away,” a family spokesperson told Page Six at the time.

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