Kate Middleton joined in with the Eurovision Song Contest excitement by featuring in the opening sequence of the event's Grand Final.
In the opening film for the highly anticipated event, the Princess of Wales joined various other performers.
It also featured last year's champions, Kalush Orchestra, performing their winning entry, Stefania, from the Maidan Nezalezhnosti metro station in the heart of Kyiv, Ukraine reports the Mirror.
The group were joined by various British icons, including Princess Kate, Andrew Lloyd Webber, Sam Ryder, Ms Banks, Ballet Black, Bolt Strings and Joss Stone.
Kate's contribution to the sequence involved a short, instrumental piano performance, created by Joe Price and Kojo Samuel, and was recorded earlier this month.
Her short segment was recorded in the Crimson Drawing Room of Windsor Castle.
She stunned in a royal blood one-shoulder gown as she performed on the piano.
Fans were delighted at her surprise appearance and took to Twitter, with one writing: "Sorry - was that Kate Middleton looking glorious playing the piano on@Eurovision?"
"OMG a Kalush Orchestra and Sam Ryder mashup!!!! AND KATE MIDDLETON PLAYING PIANO?! WHAT???: one user said.
Another posted: "KATE MIDDLETON AND ANDRE LLOYD WEBBER IN THE STEFANIA INTRO???? ALREADY CHAOS I'M LOVING IT."
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