If they didn't already have a special song, Prince Guillaume and his bride-to-be Countess Stephanie certainly have one now.
Emotive ballad I'm In Love has been created for the couple by Luxembourg composer Joel Heyard.
Lending their vocals are young singers from the region, Deborah Lehnen and Christophe Strotz.
They sing: "All I need is you by my side. And I never knew it could feel this right.
"Can you feel you're the only one, Can you feel, you're the only one I trust."
The track will be sold through the Luxembourg Tourism Office and on iTunes from October 16, four days before Guillaume and Stephanie's wedding.
It's not known whether the tune will be played at the wedding celebrations.
Meanwhile, a special bottle of sparkling wine has been created for the happy couple, a cuvee vintage Cremant de Luxembourg.
Stephanie – who is a granddaughter of Princess Beatrice of Ligne and a member of Belgian nobility – will wed her prince during a grand ceremony in the Cathedral of our Lady of Luxembourg on October 20.
This follows a civil ceremony the evening before and a champagne reception at Luxembourg's Grand Theatre.
Perhaps there'll be a chance for the couple's song to be performed during a fun rock concert which is part of the celebrations on Saturday.
Belgian pop star Selah Sue and Luxembourg soul outfit Funky P will perform in the city's Place de Paris.