Beyonce Knowles (L) and Rihanna backstage during the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California. (Photo by Larry Busacca/Getty Images).

Rihanna‘s Navy and Beyonce‘s Beyhive are at war with each other, and it’s rather frightening.

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The whole thing started when Rihanna favorited (and then un-favorited) a tweet that seemed to throw shade at Beyonce’s Super Bowl 50 performance of “Formation.”

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The tweet read: “The fact that ’Desperado’ is HIGHER on the Bubbling under chart than a single performed to a global audience.”

Well, the Beyhive wasn’t going to stand for anyone shading “Formation” even slightly, so they jumped right into Twitter action, shooting back at Rihanna and her fans.

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Things escalated from there, and now, two passionate fanbases are at each other’s throats.

Something tells us this can’t end well.