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Kourtney Kardashian, Kendall Jenner

The roaring '20s are back! Well, at least for tonight.

Sisters Kourtney Kardashian, Kim Kardashian, Khloe KardashianKendall Jennerand Kylie Jenner showed off their blast from the past attire at mother Kris Jenner's blowout bash. The famous family has put together one huge party to celebrate the E! matriarch's 60th birthday at a location in West Hollywood.

And can you guess the theme? Yep, it's all about Gatsby tonight.

Kourtney decided to rock a black and white suit with her hair slicked back and a dark lip, while Kendall and Kylie went a totally different route and dazzled in sparkling gowns and flapper accessories that were reminiscent of the famous Daisy.

The others wore dresses by Kuwaiti designer Yousef Al-Jasmi.

Kylie sported an $18,000 sparkling silver mesh and Swarovski beaded gown covered in more than 400,000 crystals. She  later changed into a white, strapless satin, partially feathered dress.

Khloe dressed up in a $16,500 silver net beaded gown, also covered with more than 400,000 crystals, paired with a matching cap. Kendall wore an $8,000 silver fringed cocktail flapper dress, accented with over 100,000 crystals. She paired the look with platinum Jenny Packham Santorini feather wrap.

my date

A photo posted by King Kylie (@kyliejenner) on

Kylie's boyfriend Tyga also attended the festivities, rocking an old school white and black tailored tux, as did Kim's hubby Kanye West, who performed.

Chrissy Teigen also shared her get-up for the night on Instagram. Other guests included Kris' boyfriend, Corey GambleWill Smith and Jada Pinkett Smith, family friend Jonathan Cheban, former Real Housewives star Larsa PippenMelanie Griffith, Caitlyn Jenner, Ellen KBoy GeorgeRyan SeacrestOlivier Rousteing, Lisa Rinna and husband Harry Hamlin and Rick Hilton and Kathy Hilton.

"Because we love her...please share in our excitement at a special birthday celebration honoring Kris," a copy of the invite read, according to TMZ, and promised a night full of champagne, dancing and dinner.

The blowout party will surely be one to remember, because this family is known for throwing some pretty epic shindigs. In fact, this party in particular is rumored to cost quite a pretty penny! TMZ reports that the kids threw back a whopping $2 million for tonight's event.

But hey, anything for mom, right?

A photo posted by King Kylie (@kyliejenner) on

hello 1920

A photo posted by King Kylie (@kyliejenner) on

Miss Daisy

A photo posted by Kendall Jenner (@kendalljenner) on

??

A photo posted by chrissy teigen (@chrissyteigen) on

Perfect ending to a perfect night ????

A video posted by Jonathan Cheban (@jonathancheban) on

Watch the season 11 premiere of Keeping Up With the Kardashians Sunday, Nov. 15 at 9 p.m., only on E!