It's clear that Brian Pumper is deluded - not only about his rapping abilities but also thinking he's going to make it big in the game with this low-budget clip (in a car he's probably rented) slagging off Beyonce and her hubby, hip hop giant Jay-Z.

Pumper claims that the song, 'She Ain't Satisfied' is aimed at the famous couple, with lyrics like: "Get out of here, she tired of you, yo sex game weak...You ain't the man in the bedroom, you don't know what you doing...You ain't ill with pipe, you ain't sick with the screwing..."

I think his rapping career - even though it hasn't started - has definitely finished.

Check out Jay-Z and Beyonce enjoying Lauryn Hill's performance in NYC this weekend...