X17 EXCLUSIVE - Justin Bieber Moved Out of Calabasas Mansion Before Miami D.U.I.

What lucky neighbors will he torture next?!

Justin Bieber is movin' on out ... of his Calabasas mega-mansion. And X17online can report exclusively, the pop star had already made up his mind to ditch his Valley digs BEFORE he headed to Miami, where he ... well, you know.

The Biebs has spent the last couple days in Panama with new gal pal Chantel Jeffries after his arrest on suspicion of DUI in Miami last week. And X17online is letting you know that with JB returns to LA, he'll likely already be in a new home!

X17 photographers spotted moving trucks at Justin's Calabasas home early last week, hauling the pop star's belongings to a new crib -- before his DUI arrest in Miami!

It's no wonder The Biebs wants to relocate after the egging incident and multiple other confrontations with residents of his posh gated community, but he better make it a priority to find a pad that's a little more secluded, so as to avoid any more lawsuits!

What's going to happen to JB's housemate Lil Za? After his arrest for drug possession earlier this month, we're going to guess the "Baby" crooner's management team is making sure the aspiring rapper finds another place to live.

Home owners everywhere better pray the Canadian sensation doesn't end up in their 'hood!