The last time the couple attended fashion's biggest night was in 2016, when the theme was "Manus x Machina: Fashion in an Age of Technology"

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“He’s moral support,” Burton told PEOPLE of her husband at the AMC Global Media Upfronts in New York City on Wednesday, April 29

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Valerie Bertinelli and Betty White starred in the TV Land sitcom alongside Jane Leeves and Wendie Malick

© <p>TV Land/Courtesy Everett </p>