Justin Bieber is going ALL OUT for his 18th birthday -- parachuting in the afternoon, a fancy dinner followed by a fun party ... and he's gonna buy TWO ultra-expensive mega-mansions ... TMZ has learned.
Justin has been on a real estate hunt in L.A. for a while ... but now, sources connected to the singer tell us he's narrowed his search down to 3 pads.
2 of the mansions are in Calabasas, CA ... home of the Kardashians, a few Jackson family members and Britney Spears.
We're told one of the estates Justin is eying has a $6 million price tag ... the other's on the market for a cool $8 mil.
The third home Biebs is interested in is in the Hollywood area -- a PIMPED OUT bachelor pad currently being rented by Ashton Kutcher. We're told that place is listed for $10 million.
Sources connected to Justin tell us ... he wants to buy one place for himself and one for his mother. The two CHEAPEST would cost $14 mil.
It's good to be rich ... and young.
3:30 PM PST -- Bieber called in to "TMZ Live" today and talked about his real estate search ... telling us he's still looking for the right place .... but said Ashton's pad is "really dope."