US President says he tells rapper how he should raise Blue Ivy
In new clip, Obama says rapper represents 'the promise of this country'
Rapper reveals his love of Nirvana's 'Smells Like Teen Spirit'
Rapper shocks commuters by taking a Brooklyn-bound MTA train to his own gig
Rapper launches new YouTube station 'Life + Times'
Hip-hop power couple hosted the $40,000 a ticket event at Jay-Z's 40/40 club
Hip-hop's royal couple will play host to the President at Jay-Z's 40/40 club, according to reports
Rapper criticises movement for not being clear about what it wants
Rihanna is also tipped to join Chris Martin and co onstage at Sunday's ceremony
Rapper also picks Santigold, Daft Punk, Nas and six of his own tracks