Kanye West freestyles at Facebook

Yesterday West breezed by Facebook's corporate offices, stepped up on a table in the cafeteria and treated the employees to a mini-lunchtime concert.

Dressed in a sharp black suit and tie, West whipped out some feisty raps.

Reports claim he performed four songs from Good Ass Job: 'Mama's Boyfriend', 'Lost In The World', 'Chain's Heavy' and 'Sweat On My Face'.

The video and camera phones were out in full effect, capturing some of the performance.

He even referenced Facebook's arch-nemesis twitter in the rhymes, although it was more related to twitterers addressing him with the n-word following the Taylor Swift incident.

Besides, Kanye doesn't even have a twitter account, despite many fake Kanyes on the site.

He raged against the short-form service last year on his blog, yelling in all caps:

"WHY WOULD I USE TWITTER??? I ONLY BLOG 5 PERCENT OF WHAT I'M UP TO IN THE FIRST PLACE. I'M ACTUALLY SLOW DELIVERING CONTENT BECAUSE I'M TOO BUSY ACTUALLY BUSY BEING CREATIVE MOST OF THE TIME AND IF I'M NOT AND I'M JUST LAYING ON A BEACH I WOULDN'T TELL THE WORLD. EVERYTHING THAT TWITTER OFFERS I NEED LESS OF."

So Kanye is obviously friends with Facebook.