Kim and Kourtney Kardashian Step Out in Style, Pose With Cher at 'The Promise' Premiere -- See the Pics!

The reality star siblings slayed in two super chic styles at the Hollywood premiere of 'The Promise' on Wednesday.

Kim and Kourtney Kardashian are killing it on the red carpet.

The reality stars sisters couldn't have looked better when they posed for photos outside the premiere of The Promise at the TCL Chinese Theatre in Hollywood on Wednesday.

Kim stunned in what looked like a Cleopatra-inspired ensemble, which featured a sexy, curve-hugging gold sleeveless gown. She completed the look by wearing her long black hair straight and parted in the middle.

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WATCH: Kim Kardashian Stuns in Sheer White Gown, Shows Off Sleek New Haircut

dressed slightly more conservatively in a black suit, but spiced things up by not rocking a shirt under her black blazer, which revealed quite a bit of skin.

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The sisters walked the carpet alongside music icon Cher, who also turned out to support the period drama, which tells the story of a painful love triangle during the Armenian Genocide and final years of the Ottoman Empire.

Cher looked like an old-school rock star in a black leather jacket accented with stark white embellishments, black slacks and a semi-sheer top. Kim, Kourtney and Cher commemorated the occasion by posing together on the red carpet.

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ET's Carly Steel caught up with Cher at the premiere, and asked how she felt about Kim rocking a very similar hairstyle to the one Cher famously donned for years. According to the Oscar winner, the look simply proves that fashion is cyclical.

"What goes around comes around!" Cher remarked.

WATCH: Cher on Outlasting Britney Spears and Jennifer Lopez: 'I Was Doing Vegas When They Were in Rompers'

Kim's super chic style at Wednesday's premiere was a far cry from what the reality star and mother of two wore when she hit the town last Saturday with husband Kanye West. Check out the video below to see Kim's cleavage-baring date-night couture.

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