Olivia Wilde is on a “Watermelon Sugar” high after Harry Styles nabbed his first Grammy Award on Sunday night.

The former One Direction star took home the Golden Gramophone for Best Pop Solo Performance.

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Taking to her Instagram Story in the wake of the announcement, Wilde shared an iconic photograph of Paul McCartney eating a watermelon.

The “Richard Jewell” star captioned the image with a raised hands emoji, typically used to celebrate success.

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The 36-year-old director/actress and the 26-year-old musician/actor sparked dating rumours after being spotted holding hands as they attended a recent wedding together in Montecito, California.

Wilde is directing Styles in her upcoming psychological thriller, “Don’t Worry Darling”, which centres on an unhappy housewife in the 1950s.

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In November, a source confirmed to ET that Wilde and comedian Jason Sudeikis called off their engagement after nine years together. The pair share two children; 6-year-old son Otis and 4-year-old daughter Daisy.