Kanye West 'planning duet with Kardashian'

Kanye West is reportedly planning to record a duet with his pregnant girlfriend Kim Kardashian.

The 'Stronger' rapper - who announced on stage last weekend that he and the socialite are expecting their first child together - has booked a recording studio for the end of January and thinks it would be "cool" to make some music they can play to their baby when it is born.