One Kardashian boyfriend helping another Kardashian boyfriend!

Scott Disick channels American Psycho serial killer Patrick Bateman in a new video short promoting Kanye West's new album Yeezus, and Kourtney K's baby daddy does a pretty amazing job recreating Christian Bale's infamous character.

Wearing a plastic rain coat and carrying an ax, the father-of-two murders Kimmy K's BFF Jonathan Cheban, who plays the business partner, while praising Yeezy's new tunes.

"Hey, do you like Kanye West? The early work was a little too hip-hop for me and my taste, but when Dark Twisted Fantasy came out in 2010, I think he really came into his own both musically and lyrically," the New York native says in the clip.

We have a feeling the Louis Vuitton Don was the one supplying a lot of Lord Disick's lines!