Jay-Z is planning a star-studded party to celebrate his manager's 40th birthday in London.
The rapper - who is married to Beyonce Knowles - is in the capital city to perform a concert with friend Kanye West.
However he will acknowledge his colleague's milestone age with a bash after the show which will have their star friends in attendance.
Apparently the 150 celebrities invited include Kanye's girtlfriend Kim Kardashian, who is in the capital city promoting her fragrance.
The list also has her brother Rob Kardashian and his singer girlfriend Rita Ora down, plus Gwyneth Paltrow, Rihanna, and of course the mother of Jay-Z daughter Blue Ivy, Beyonce.
A source told The Sun: ''It's at a top city venue after Jay and Kanye's O2 show.''
The '99 Problems' lyricist - whose real name is Shawn Carter - is even going to extravagant lengths such as flying his favourite cook out to the UK, to cater for the party.
The insider added: ''There will be a dinner first cooked by a chef flown in from New York and then a huge party. Security is going to be tight.''
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