It wasn't only the judges that the Strictly Come Dancing contestants had to impress on Saturday.
The hit show’s audience had one very special guest – Princess Beatrice.
The 23-year-old was there to support her pal Holly Valance.
And she beamed as the Australian actress took to the stage to perform a Swan Lake-themed American Smooth.
The royal also watched Nancy Dell’Olio emerge from a coffin as part of the show’s Halloween spectacular.
Photo: © BBC1