Kanye West raps about Kim Kardashian's sex tape in his new song.

The "Stronger" rapper - who has been dating the reality TV star for around five months - appears to make reference to Kim's infamous 2007 tape in latest track "Clique." The song - which was leaked to gossip website TMZ.com and will be featured on his album Cruel Summer - includes the line, "Eat breakfast at Gucci. My girl a superstar all from a home movie."

The sex tape stars Kim and her Kardashian and ex-boyfriend Ray J, and after it was leaked online, the 31-year-old socialite became a huge star. While he is singing about the sex tape, it was recently claimed Kanye - who has known Kim for four years - had refused to watch it.

"For all his bad-boy image, he's quite old-fashioned and [while they were still just friends] he thought it inappropriate to view Kim's tape. Now that they are a couple, there's no way Kanye's ever going to look at it," a source said.