Cops have just raided the house of weed-enthusiast, Justin Bieber.

The raid comes on the heels of an egg attack: the kid and his cronies pelted a neighbor's house with a bucket of eggs, causing an estimated $20,000 in damage.

According to TMZ, it is a felony search warrant -- meaning "Justin is under a microscope for a crime that could land him in prison." TMZ also reports that cops will look for anything that is relevant to the egg incident, including other eggs in the house and possible video.  

Chances are LA cops won't find any illegal eggs in the house, but we'll wager they'll find plenty of weed…at least enough to land Bieber in hot water.

Remember bro: only break one law at a time.

UPDATE: TMZ is reporting that Bieber's buddy Lil Za was arrested for possession of molly and Xanax at the singer's home -- during an early morning raid stemming from the Bieber egg attack on his neighbor.

Looks like things just got serious.