Kylie Jenner's Family Surprises Her With 20th Birthday Party Featuring a Booty Ice Sculpture and More: Pics!

This video is unavailable because we were unable to load a message from our sponsors.

If you are using ad-blocking software, please disable it and reload the page.

What a booty-ful surprise! Kylie Jenner turned 20 on Thursday and to celebrate, her famous family and friends went all-out, throwing her an epic surprise party late Wednesday night.

Jenner had attended her boyfriend Travis Scott’s concert with Kendrick Lamar earlier in the evening at the Staples Center in Los Angeles. After the show, she was greeted by the surprise soiree at Hills Penthouse in West Hollywood.

MORE: Kylie Jenner Soaks Up the Sun in a Tiny Bikini -- See the Pics!

Kylie walked in wearing a white mini-skirt and loose top, hugging Scott as her sisters, Kim and Khloe Kardashian, Kendall Jenner and her momager, Kris Jenner, cheered her on.

An eyewitness at the bash tells ET that the Kardashian sisters, along with mom Kris, arrived to Hills Penthouse West Hollywood around 9 p.m. on Wednesday night. Kylie arrived to the party separately Scott at around 11 p.m.

"It was super chill," the eyewitness says. "She [Kylie] loved her ice sculpture of her body and her cake." Party insiders tell ET that Scott did some DJ'ing during the bash and guests were seen enjoying pizza.

ET has learned that Kim left around 11:30 p.m., followed by Kendall then Khloe around midnight. Kylie and her crew left shut the party down around 12:45 a.m.

Other familiar faces at the party included A$AP Rocky, longtime Kardashian friend Jonathan Cheban, and Kylie's best friend, Jordyn Woods.

Khloe was joined by her boyfriend, Tristan Thompson, and the pair kissed in a cute Snapchat together before Kim posted a funny shot of Thompson seemingly checking out his girl.

Other pals in attendance included Jonathan Cheban, Jen Atkin, and Jordyn Woods, who all dined on Kylie’s funny cake, which featured a photo of the cosmetics queen making a silly face. There was also a chocolate fountain and an ice sculpture of an hourglass figure – booty and all!


WATCH: Kylie Jenner Goes to Therapy, Reveals Pressures of Fame on 'Life of Kylie' Premiere: 'I Just Want to Run Away'

The sisters also posted together, with Khloe in a black mini-dress with a plunging neckline, Kim rocking a purple floor-length gown, and Kendall flashing her killer legs in a black and silver mini-dress.

For more from Kylie, watch the clip below!

-- Reporting by Brendon Geoffrion

Related Gallery