Kanye West is a little upset with Jay Z right now and chose to air out some details about why at one of his most recent concerts. He even went as far as telling the crowd how their children "...never even played together."

Kanye West is known for saying whatever he wants, whenever he wants, no matter who it may offend.

Vibe shared how most recently that moment of saying whatever he wants came while he was on stage at the Key Arena during his Seattle Saint Pablo Tour stop, when he let off a little steam toward his "Big Brother" - Jay Z.

Unfortunately, the tension stems from the business side of their relationship as the Yeezus artist explained on stage.

"It was some Tidal/Apple bullsh*t. This sh*t gets me tight every time I perform this motherf**ker," West ranted during the concert.

The performed song in question that got him so "tight" was Drake's "Pop Style," which according to him, he was also supposed to be featured on but, it never happened due to "..some political sh*t, some sh*t about percentages on songs."

Jay is the mastermind behind the Tidal streaming service at odds with Apple Music.

Because of it, Ye urged how "Hov" is pretty much the one controlling everything and his business decisions have really taken its toll on their friendship and any future collaborative albums.

It has also affected the closeness of families - their wives, Kim Kardashian and Beyonce; and children, Blue Ivy, and North and Saint West.

There will never be a Watch The Throne 2... I wasn't on this song ("Pop Style") 'cause of Hov," he stated "I can't take this sh*t bro, our kids ain't never even played together" he continued.

Other shady dealings revealed during show pertained to Roc Nation artist Meek Mill and his feud with Drake.

The venting was of course captured on video from cell phones footage that night, and then uploaded on social media.

Below are the videos caught by these great eyes and ears in the crowd that night.

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