Hayden Panettiere’s ex Wladimir Klitschko honored the late actress with a sweet birthday tribute — just days after her tragic death.

The former professional boxer, whom Panettiere shares daughter Kaya with, shared a heartfelt message via Instagram on Friday, which would have marked her 37th birthday.

“Today is Hayden’s birthday. Instead of celebrating the way we had planned, today we celebrate her life, her spirit, and the love she brought into this world,” he captioned a beautiful photo of Panettiere.

“I want to thank all of Hayden’s fans, friends, and everyone who has reached out for the incredible outpouring of love and support,” he continued. “At a time filled with so much sadness, your kindness has reminded me that there is still so much good in humanity.”

Klitschko also urged his followers to embrace love, reconnect with a friend, offer forgiveness and show kindness.

“Love is a superpower. Use it,” Klitschko, 50, said. “Happy Birthday, Hayden. ❤️ You are loved, you are missed, and you will never be forgotten.”

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