Kanye West is reportedly jealous of Pharrell Williams.

The 'Blood On The Leaves' rapper is said to be keeping a close eye on the 'Happy' hitmaker after reports he is close to signing a deal with Adidas, the same sportswear brand that Kanye has been commissioned to design a clothing range for.

According to The Sun newspaper, a source revealed: ''They are competitive in both music and fashion, Kanye always watches what Pharrell does. He thinks having a similar artist working on their own brand for Adidas will make his collection less special.''

Kanye signed a deal with Adidas in December last year after a spat with the Nike - over royalties for his exclusive collection of Air Yeezy sneakers - which resulted in the end of his business relationship with the sportswear brand.

Meanwhile, the 36-year-old rapper has announced plans for his very own movie, which follows his 'Yeezus' tour.

A release date for the film is still to be confirmed, and it is believed his fiancée Kim Kardashian - whom he shares eight-month-old daughter North with - is set to play a ''pivotal'' role.