Kendall And Kylie Jenner Sing Justin Bieber's Mistletoe With Cast Of Breaking Dawn

Oh wow. Time to plug in your ears.
There is some pretty bad karaoke going on in this clip.
Kendall and Kylie Jenner sat down with some of the cast of The Twilight Saga: Breaking Dawn Part 1 to sing Justin Bieber‘s holiday hit Mistletoe.
The girls got nothing but LOLs since pretty much nobody knew the song nor did anyone know how to sing.
Watch above!