Kim Kardashian and Beyonce get cordial at Serena Williams' Wedding (Details, pics)

Kim Kardashian and Beyonce aren't letting their famous husbands' longstanding feud affect them... Or so it seems.

Sources reveal that Kim and Beyonce were actually cordial onThursday night at Serena Williams' wedding in New Orleans... and they even exchanged hellos in the VIP section set up to avoid paps lingering outside.

As you know ... Jay-Z and Kanye West haven't spoken in a long time, ever since Kanye attacked Beyonce in 2016. That was followed by Kanye West's lawsuit alleging Jay's Tidal owes him over $3 million.

While Jay and Kanye once had a super close relationship  ... the same can't be said about Kim and Bey. They're not friends -- in fact it was gathered that Beyonce never really liked Kim, although Kim never harbored a grudge. 

Nevertheless, they still acted friendly around each other ... not that they had a choice. Not only do they have a ton of mutual friends, but running into each other was inevitable with just a handful of A-listers in the tent.

Leave the drama for the Hip Hop moguls...