Kanye serenades Riccardo Tisci at lavish birthday bash

Givenchy designer Riccardo Tisci celebrated his 40th birthday with a lavish bash in Ibiza on Friday.

We’re told guests included Justin Bieber, who was brave enough to show his face after his run-in with Orlando Bloom earlier in the week.

Also there were Kim Kardashian and her kin Kendall and Kris Jenner.

Guests were greeted with the release of white balloons and a Spanish guitar player.

Kate Moss and Naomi Campbell sang “Happy Birthday” as a four-tier white cake was presented.

Kanye West serenaded Tisci at the Beats by Dre-sponsored bash.

We’re told the always outspoken rapper toasted the designer, saying Tisci “inspired” him and “is influential to a generation.”