Crown Princess Mary of Denmark wore the popular H&M dress to the Copenhagen Fashion Summit on Thursday.
The dress features a mullet hemline, shorter at the front and longer at the back.
Crown Princess Victoria of Sweden often wears pieces from H&M's Conscious Collection.
Crown Princess Mette Marit of Norway wore the dress to attend an amfAR gala in New York in 2014.
Miranda Kerr and Emmy Rossum also own the pretty dress.