Credit: Courtesy Justin Bieber

Party on! Justin Bieber joined Kim Kardashian, Kendall Jenner and Kris Jenner to help celebrate Givenchy designer Riccardo Tisci's birthday in Ibiza, Spain, on Friday, August 1.

The 20-year-old singer shared a series of Instagram photos from the Beats by Dre sponsored party showing off the good times. In one pic, Bieber—who got into a scuffle with Orlando Bloom on the island days earlier—is smoking a cigar. The "Boyfriend" singer captioned the snap simply: "Celebrate."

"@kimkardashian @kendalljenner @krisjenner celebrating @riccardotisci17 birthday," the singer captioned another photo of himself with Kardashian, Kris, Kendall, and the man of the hour. Decked out in diamond accessories, Kardashian looked glam in a swank black gown.

Kendall, who shared a picture of Bieber and his best friend Khalil giving her kisses on both cheeks, looked equally as flawless with a bright red lip in a plunging neckline ensemble. The 18-year-old captioned the photo booth shot: "With the boys."

Also in on the fun was Kardashian's husband Kanye West. Bieber posted an Instagram video of the partygoers going wild while West performed on a balcony.

Earlier in the day, the E! star shared a nearly naked Instagram wishing the Givenchy creative director—who designed her wedding dress—a "Happy Birthday." Wearing only stockings and her wedding veil, the 33-year-old captioned the snap: "Happy Birthday @riccardotisci17 I love you soooo much!!! Can't wait to celebrate with you tonight!!!!"