Lil Za arrested during Justin Bieber home raid for felony drug possession: cocaine 'in plain view' after crazy 'egging attack,' both going to prison?

Oh, Justin Bieber and friends. Maybe it's time for a break.

Just last week, the Biebs allegedly egged his neighbor's house in Calabasas, resulting in approximately $20,000 worth of damages. Check out some of Mstars' coverage on the developing story:

Justin Bieber dissed by Nick Jonas for 'egging scandal' attack, Selena Gomez's exes engaged in Twitter feud over 'immature' felony prank?

TMZ reports that this morning (Tuesday, January 14), a total of 11 L.A. County Sheriff's patrol cars arrived to Bieber's mansion in order to execute a search warrant in connection with the "egging" scandal. Basically, the 19-year-old pop megastar was raided by the cops. Authorities are looking for any evidence to prove that Bieber was connected to the sticky food attack on his neighbor's house.

It's pretty serious... the Biebs could even face felony charges (aka, prison time).

Sources confirm that deputies hope to find surveillance footage that might connect Bieber to the crime.

But here's where the story gets even more crazy... Bieber wasn't arrested during the raid, but his troublemaker friend Lil Za was.

Reports confirm that the aspiring rapper was ultimately busted for drug possession (cocaine, to be exact). When officials landed upon Bieber's home, Za's stash was found "out in plain view." Authorities confirm that Selena Gomez's ex is NOT connected to the drugs.

This isn't the first time Bieber and his "BFF" have found themselves in hot water together (involving illegal substances):

Justin Bieber Smoking Weed in Sweden with Bros? Pot Bust on Tour Bus

Justin Bieber, Lil Twist, Lil Za cuddle in bed together, friends no longer fighting? Fans respond to 'bromance' pic

Details surrounding the arrest are still hazy, so stay tuned as the story further develops...