Rapper Kanye West has dissed his former collaborator, footwear brand Nike, and and has also made references to comedian Bill Cosby's sexual assault allegations and Steve Harvey's Miss Universe gaffe in his new single "Facts".

Kanye's wife and reality TV star Kim Kardashian announced his new song on Twitter on New Year's eve.

"Yeezy Yeezy Yeezy new song about to drop #Facts," the reality TV star tweeted on Thursday. She then teased it with some photographs of her husband and US President Barack Obama before tweeting a link to the song on Kanye's SoundCloud page.

Co-produced by Metro Boomin, the song features Kanye dissing Nike and rapping about everything from his 2020 presidential bid to Kim's newly-launched Kimoji.

It's currently unknown if "Facts" will end up on Kanye's long-awaited new album "Swish".