Kanye signs Nike deal to become 'bigger than Wal-Mart'

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.