Street artist Konfused is just that ... after Chris Brown snatched his tag and slapped it on a clothing line ... according to the lawsuit he's filed against the singer.
In legal docs, Andre Khazrei says he's been Konfused since 2003 ... long before Breezy created the very similar artistic alter ego, Konfuzed -- and started tagging walls and signing paintings.
Andre says he got a trademark for Konfused t-shirts and a bunch of other merch -- which is why he says Chris' Breezy Konfuzed clothing line is a total rip-off, which confuses the marketplace.
His proof? In the docs, Andre says Chris himself screwed up and signed a painting at L.A.'s Grammy Museum with "Konfused" ... instead of using a 'Z.'
Andre is suing for damages and to get Chris to immediately stop using the mark.