Surprise Surprise...Jesse McCartney Is A Douchebag

Jesse McCartney's neighbors have had it up to their eardrums with the former boy bander -- and this weekend they made the cops pay Jesse's loud ass a visit.

We're told the 21-year-old threw a huge, loud party at his Hollywood Hills pad Saturday night -- but the neighbors sucked it up and let it slide. But Sunday, our sources say McCartney blasted the volume on his television -- and his neighbors just couldn't take the racket anymore.

Cops were called to the scene, but Jesse turned his obnoxious set down and no citations were given.

Back in March, Jesse's ragers annoyed the neighborhood so much that a notice went out around the area instructing residents to call 911 if things got out of hand again.

TMZ