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The ultimate sign of bromance!

Jay Z will serve as Kanye West's best man at his wedding to Kim Kardashian on May 24, DailyMail reports.

Hova will be front and center for Kimye's big day, but wife Beyonce still isn't sure she's even going to attend!

"Beyonce had to think about it at the last minute, she didn't really want to go, but I think Jay Z's the best man, so he's kind of making her go," a source told the website.

The "Drunk In Love" singer was reportedly on the fence about going because it was rumored the nuptials would be filmed for Keeping Up with the Kardashians, but Kimmy K dispelled that chatter and now it seems Bey might decide to grace them with her presence.

It's a power struggle between power couples!