NFL Star DeAndre Levy -- Insane Wing Walking Video ... Dude's a Maniac!

Here's CRAZY video of NFL linebacker DeAndre Levy ... WING-WALKING on a bi-plane ... while only relying on a tiny little safety rope in case he slipped during the flight.

Again, this video is NUTS!!!

Levy is no scrub ... the Detroit Lions stud is one of the best linebackers in the league and he's heading into the final year of his 3-year $9.75 million contract.

So, he's got a lot to live for.

Still, Levy decided to risk it all for the thrill of some in-flight stunts -- as the pilot of the plane executes some barrel rolls and crazy inverted flying tricks.

Ya gotta wonder how the Lions feel about Levy's hobby -- considering they wouldn't even let Matt Stafford ride a motorcycle when he signed his big contract.