Khloe Kardashian Celebrates With Boyfriend James Harden at an All-White Birthday Party on a Yacht: Get the Details!

Kim Kardashian, Kylie Jenner and Kendall Jenner at a White Party
Photos of Kim Kardashian, Kanye West, and Kylie Jenner at James Harden's White Party on a Yacht on Aug. 25. courtesy of Kendall Jenner/Instagram

Go big, or go home! They've only been dating for a month, but that didn't stop Khloe Kardashian from celebrating her basketball player boyfriend, James Harden, at a blowout 26th birthday bash on a yacht on Tuesday, Aug. 25. And the dress code, of course, was strictly chic!

The Houston Rockets shooting guard's party on the Fantasea Yacht docked in Marina Del Rey, Calif., boasted more than 200 people, all of whom were instructed to wear white for the special occasion. Each guest, according to onlookers, was greeted with a glass of champagne while boarding the yacht, which was covered in white string lights.

ahoy

A photo posted by Kendall Jenner (@kendalljenner) on Aug 26, 2015 at 9:17am PDT

As Khloe, 31, played a part, her famous family was naturally in attendance, too! Sister Kim Kardashian and her husband, Kanye West, sister Kourtney Kardashian, half-sisters Kendall and Kylie Jenner, Kylie's beau, Tyga, Khloe's mom, Kris Jenner, and her boyfriend, Corey Gamble, were among the guests (who sipped on Belvedere cocktails). NBA players Trevor Ariza and Baron Davis, West's ex-girlfriend Amber Rose, and the Kardashians' go-to hairstylist, Jen Atkin, were also at the event.

Atkin later shared a style snap via Instagram with this hilarious realization: "Going thru my pics in my phone thinking how cute I looked tonite, then I realize it's @kendalljenner. #Ugh"

Seasterz.

A photo posted by Kourtney Kardashian (@kourtneykardash) on Aug 26, 2015 at 11:42am PDT

Onlookers report that, right at midnight, when it officially became Harden's birthday, fireworks were set off into the sky, and everyone screamed. Everyone then sang "Happy Birthday" to the man of honor.

squaa

A photo posted by King Kylie (@kyliejenner) on Aug 25, 2015 at 10:29pm PDT

Of course, there was a professional on hand, too! The event was organized by celebrity party planner Sharon Sacks, who has planned many a Kardashian special event through the years, including Khloe's wedding to Lamar Odom in 2009, Kim's wedding to second husband Kris Humphries in 2011, and Kylie's sweet 16 birthday party in 2013.

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