(Image source from: Jay Z)

Music mogul and multimillionaire rapper Jay Z shall be by the side of his best chum Kanye West when the later says 'I Do' to Kim Kardashian this Saturday in front of 150 guests.

A family source reveals that the rapper would walk in as the best man at Kimye's lavish do to be held at Forte di Belvedere in Florence in Italy on 24 May, 2014.

With Jay Z all set to attend the big event, even wifey Beyonce has agreed to tag along. Apparently, Beyonce was reluctant on attending the do at first, but finally gave in to Jay Z's insistence after she learned that the wedding won't be filmed on the cameras. So much for exclusivity, you see!

The A-list couple will turn up for the European extravaganza at Paris today before jetting off to Florence.

And if you thought that was it, listen to this. The million-dollar couple will also perform at the wedding and for a whopping fee of $ 2 million.

While Beyonce and Kim are not best friends as Jay and 'Ye, Queen Bey has always been polite to Kim.

Besides Beyonce and Kim, the do is likely to be attended by John Legend and wife Chrissy Teigen, Kim's best pals Brittny Gastineau and Jonathan Cheban and Lala Anthony and Larsa Pippen. Designer and New York socialite and Kim-Kanye's new friend Rachel Roy is also likely to be there.

AW: Suchorita Choudhury