Kanye West has vowed to be ''bigger than Wal-Mart'' after signing a deal with adidas.

The rapper - who is engaged to Kim Kardashian, the mother of his five-month-old daughter North - has partnered with the sportwear giant because he needs to ''provide for his family'' and thinks the deal will prove highly lucrative.

He told Angie Martinez on New York's Hot 97 radio: ''I took the adidas deal because I have royalties and I have to provide for my family.

Whatever is official, non-official, official-what y'all gonna see is I'm gonna be the Tupac of product.''

''I'm gonna be the first hip-hop designer and because of that I'm gonna be bigger than Wal-Mart.''

Kanye has ended his long-standing relationship with adidas' rivals Nike because he claims they refused to pay him royalties as he isn't a sportsman.

He said: ''Nike told me, 'We can't give you royalties because you're not a professional athlete.' I told them, 'I'll go to the Garden and play one-on-no one.' I'm a performance athlete.''

The 'Bound 2' star also claimed his race sometimes holds him back in the fashion world, but has proved advantageous in some situations, which he is happy to capitalise on.

He said: ''What I want to express is yes, there are things that hold me back because I'm black but there's also reasons why I'm there because I'm black. They need a token. But since I'm the token I'm gonna spend my token and take the train all the way home. I'm gonna wear tight jeans like a white boy and a big chain like hip-hop.''