Actor Liam Neeson shared the sweetest story about his late wife, Natasha Richardson, on the Radio Andy show on Thursday.

Neeson revealed that on their wedding day, Richardson surprised him with a performance of "Crazy Love" by Van Morrison.

"Behind my back Natasha had been taking singing lessons to sing it to me," Neeson told host John Benjamin Hickey. "In the marquee after the ceremony, we were all going in to start the night's festivities and she grabbed the microphone and she sang me this. She had learned it and I was like, 'Wow!'"

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Married in 1994, Richardson and Neeson had two children together, Micheál and Daniel Neeson. Richardson died in 2009 after suffering a head injury in a skiing accident.

"There's periods now in our New York residence when I hear the door opening, especially the first couple of years ... any time I hear that door opening, I still think I'm going to hear her," said Neeson in a "60 Minutes" interview with Anderson Cooper in 2014.