After her breakout role in Rear Window in 1954, Princess Grace attended Cannes with French actor Jean Pierre-Aumont as her date (and still-rumored love interest at the time).

Princess Diana only attended Cannes once, in 1987. For the occasion, she wore a powder-blue Catherine Walker ballgown that was fit for Cinderella.

Cher always leapt at the chance to show-stop at any A-list event, and her glittering skirt-suit and shock of hair were just the thing to do the trick.

Often called the "British Marilyn," actor Diana Dors wore a satin gown and fur stole for the festival in 1954.

Kate Moss and Johnny Depp attended Cannes together several times, but the suited look she wore following her peak supermodel years is certainly the most iconic.

Rihanna added another classic ballgown to her arsenal in 2017, when she wore a milk-white Dior gown remixed the look with angular sunnies.

Attending with Bruce Willis in 1997, Moore wore an iconic floor-length rose coat with a belted black dress.

The Casino starlet had several laudable Cannes ensembles, including this classic embellished halter gown in 1995.

In a silver Chanel minidress, Jlo's asymmtrical look made a major splash amongst classic ballgowns.

For the premier of Ocean's Thirteen, Jolie attended with Brad Pitt in a lemon, rouleau-strapped dress that was equal parts sultry and stately.

To kick off the new millennium, a sun-kissed Klum wore a tank dress in classic red, which would dominate the Cannes carpet for years to follow.

For the premier of Shrek 2 at the 57th Annual Cannes International Film Festival, Diaz wore a Louis Vuitton mermaid dress, punctuated by blush bows, and matching pointed pumps.

At last year's festival, Banks went "old Hollywood" with short, tight curls, a timeless red Armani Prive ballgown with a glittering diamond ring.

Ratajkowski's jaw-dropping lace gown by Peter Dundas featured a tiered train and cutout bodysuit, going down in Cannes best-dressed history.

In cherry-hued Roberto Cavalli, Hadid's thigh-high slit and flowing train placed her at the top of the list of classic red gowns at the event

Ines Di Santo designed Hill's high-ow look, with a miniskirt that featured a flurry of feathers and a long, floral cape to match.

In this surprising tux-cut dress, Palvin shimmered at the 2018 Cannes Film Festival in Alberta Ferretti.

While pregnant, Lively memorably donned a cornflower blue Atelier Versace frock in 2016, winning the red carpet for the year in one fell swoop.