As the nuptials will be on Tv, Beyonce isn't happy about it according to sources so Jay will not participate so as not to cause a family problem.
A source explained: "Jay is Kanye's closest friend so he wants him to be best man.
Jay agreed initially but had one condition - under no circumstances can there be any reality TV shows filming him, his wife, Beyoncé or daughter Blue Ivy during the ceremony.
The thought of popping up in KUWTK mortifies Beyoncé. She purposefully keeps herself away from trashy TV and isn't prepared to lower her standards for anyone, or any occasion.
Bosses at E! are desperate to get the nuptials on air, and will pay millions to make it happen."
It's previously been mentioned that the TV deal is already in the works especially because E! will pay for the wedding! So, what's more important: getting the best man you want or making millions of dollars? Hopefully this will be Yeezy's one and only wedding, so it's a tough decision.