One event, four stars, two dresses.

At Wednesday's UK Style by French Connection launch party in Hollywood, jewelry designer Nicky Hilton, 27, donned the same dress as her pal Jaime King -- but it wasn't on purpose!

"I was on the carpet doing photos, and I saw the back of it and I thought, 'Oh my god -- that's my dress!' Hilton told "But it's funny. We're good friends. Whatever."

Adds King, 31: "I love that my friend and I are wearing the same outfit! That's how you know people are friends -- they have the same style!"

PHOTOS: Vote! Who wore it best?

Fortunately, their looks weren't completely identical; Hilton paired her dress with Louis Vuitton shoes, while King opted for YSL pumps.

Despite the goof, Hilton is looking forward to appearing in Us Weekly's "Who Wore It Best?" section. "We are definitely going to be battling it out!" she laughed.

Hilton and King weren't the only ladies to rock the same outfit -- Carmen Electra and Brooke Burke also turned up wearing the same UK Style by French Connection animal print dress.

Electra, 38, added a black blazer to ensemble; the Dancing With the Stars co-host, 39, accessorized her look with a silver cuff and hoop earrings.

Tell Us: Who Wore It Best?


Who Wore It Best?

Nicky Hilton and Carmen Electra
Nicky Hilton and Brooke Burke
Jaime King and Carmen Electra
Jaime King and Brooke Burke
6562 Total Votes
Who Wore It Best?