The rapper is said to be staging a Roc Nation event costing around £500,000 to follow the annual awards show on Wednesday (February 20), reports The Sun.
Beyoncé, Rita Ora, Justin Timberlake and new Roc Nation signing Kylie Minogue are expected to join label boss Jay-Z for the event.
Seafood costing thousands of pounds and Ace of Spades champagne is reportedly being shipped over to the UK for the party.
Calvin Harris will apparently DJ the event, which will be staged at London's Hakkasan restaurant.
Justin Timberlake will perform at the annual awards ceremony on Wednesday, while Beyoncé has been linked with a spot on the lineup.
Kylie Minogue was signed to Jay-Z's label earlier this month, with plans to release a new album later this year.
Photo gallery - Brit Awards 2013 nominations: