The audience really threw some shade at the famous sisters!

Kendall and Kylie Jenner hit the stage at last night's Billboard Music Awards in Las Vegas to introduce brother-in-law Kanye West's show closing performance, and the reality stars shockingly kept their cool as audible boos were heard from the crowd. We guess nobody wanted to Keep Up with the Kardashians!

Poor Kylie did the majority of the talking with her model sibling just stood there, and we've got to hand it to her for having the guts to come before Hollywood's biggest names and endure embarrassing heckling.

Almost as embarrassing? Yeezy's performance! The rapper belted out "All Day" and "Black Skinhead," and he used so many N-words that almost his entire act had to be censored. Not only that, but with all the pyrotechnics, you could barely even see the Louis Vuitton Don onstage.

You have to watch the awkward video below!