Four months after the birth of her son Saint West, Kim Kardashian returned to the red carpet Saturday in stunning fashion!

Though the 35-year-old has definitely been seen out and about — most notably at hubby Kanye West's Yeezy Season 3 show in February — the third anniversary celebration of Hakkasan nightclub in Las Vegas marked her first official event back post-baby.

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Wearing a bedazzled black, gold and white Balmain number with shoulder cutouts and sheer panels, the reality star's significant weight loss was noticeable as she chatted about shedding those last 20 pounds.

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“I definitely feel good to a place where I feel comfortable again and things are starting to fit,” she told reporters. “This time I think weight has come off quicker than last time because I kind of learned how to eat better. Last time I worked out a little bit harder. This time I’m eating differently.”

Kim, who's combining the Atkins diet with a series of intense workouts, added, "I think the mix of the two will really help these last 20 pounds fly off. I’m praying.”

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In a Snapchat video recorded in the early hours of Sunday morning, the mother-of-two prided herself on not ordering fast food from restaurant chain Jack in the Box.

"I did so good," she told fans. "I didn't order anything at 3:30 in the morning when everyone did, and I am proud."