Beyonce, Jay Z Sued -- Singer Says They're Money Hungary Over 'Drunk in Love'

Beyonce and Jay Z ripped off a singer from a far away land to make one of their biggest songs ever ... so claims the outraged Hungarian woman who wants "Drunk in Love" put on the shelf for good.

Monika Miczura, aka Mitsou, says Bey, Jay and producer Timbaland pilfered a Roma folk song she recorded in 1995, then used it for the first 13 seconds of the hit song.

Mitsou says she never gave them permission, but even worse, her song is about hopelessness yet Beyonce used it "to evoke foreign eroticism alongside the sexually intense lyrics."

Mitsou says the 3 amigos bastardized her song -- "Bajba, Bajba Pelem" -- by digitally manipulating her voice with Auto-Tune and various cuts.