Holiday dressing can be hard to navigate — long or short? Satin or sparkle? What constitutes “black tie”? — so take a few notes from this Hollywood royal.

Don Johnson and Melanie Griffith’s daughter has been winning the style game recently, sporting a collection of cocktail-prime dresses in black and white — plus ensembles with feminine adornments that scream “festive” — while out and about promoting her film “Black Mass” with Johnny Depp.

The best thing about the 26-year-old’s red carpet repertoire is it’s never one-note — despite the fact that almost every look is either Gucci or Christian Dior.