I'M RETIRING  —  BREAKING HEARTS  —  Justin Bieber is done with show biz ... so he says — thing is, we don't believe him.  —  Justin was at Power 106 in L.A. today, and said after his next album drops he's retiring.  The album comes out next week.  —  We talked to people in Bieber's camp and they said he was joking.

The GQ Cover Story: Bradley Cooper Is A-List Now, Bro  —  You know the guy who once made playing jerks look too easy?  Well, he's now an international box-office draw and Oscar nominee.  (Speaks French, too!)  —  Oahu, Hawaii: Speeding down the side of a volcano in a rental-car-colored Chevy Cruze …

Warner Bros Sets 'Gilligan's Island' As Star Feature Vehicle For Josh Gad  —  EXCLUSIVE: Remember Gilligan's Island, the venerable 1960s TV series about seven castaways who wind up stranded on a tropical island after a torrential storm shipwrecks their yacht The S.S. Minnow?

Kim Kartrashian Denies Waxing Baby North's Eyebrow Situation  —  Since a Kardashian isn't officially a Kardashian until she's been dipped in a pot of wax, covered in strips and ripped of every hair on her body, some accused Kim Kartrashian of taking a tip from Backdoor Farrah's “How To Be A S**t Mom” …

ORLANDO BLOOM IS NOT YOUR AVERAGE ROMEO  —  Whether playing a blond-haired, blue-eyed elf or Romeo, the original heartthrob himself, Orlando Bloom has always quickened pulses.  But, as Mickey Rapkin learns, when it comes to the spiritual Brit's own passion plays, mellow is his mantra  —  Getty Images

JOHN MAYER DEBUTS NEW “WHO YOU LOVE” MUSIC VIDEO, STARRING KATY PERRY  —  John Mayer and Katy Perry love each other soooooooo much!  So much so that overly affectionate couple just released a new video of their duet, “Who You Love.”  And we are [gagging] — so happy for them!

Kelly Rowland Confirms Engagement to Tim Witherspoon: “He Put a Ring On It” Via Skype!  —  Kelly Rowland's man put a big ring on it — and she has technology to thank!  —  As Us Weekly reported back in November, Rowland is engaged to wed her manager and boyfriend Tim Witherspoon.

Jennifer Lawrence Tells Barbara Walters “It Should Be Illegal to Call Somebody Fat on TV”  —  She's a girl on fire, and Jennifer Lawrence is using her place in the spotlight to speak out about issues close to her heart.  The Hunger Games: Catching Fire star recently sat down with Barbara Walters …

Colin Farrell: Elizabeth Taylor Was the “Last Kind of Romantic Relationship I Had”  —  In another lifetime, Colin Farrell and Elizabeth Taylor might have been great lovers.  Speaking with Ellen DeGeneres on Monday, Dec. 16, about his unique friendship with the legendary screen siren …

Fifth Child on the Way for Bruce Willis  —  Bruce Willis is about to dive hard into daddy duty — again!  —  The Red 2 actor, 58, and his wife Emma Heming-Willis, 35, are expecting their second child together, a source confirms to PEOPLE.  —  The Willis' rep had no comment on the family's happy news.

Daniel Clowes Pursuing His Legal Options Regarding Shia LaBeouf's Plagiarism  —  “His apology is a non-apology, absolving himself of the fact that he actively misled, at best, and lied, at worst, about the genesis of the film,” Clowes' editor wrote to BuzzFeed.  —  Larry Busacca

Lindsay Lohan — I'm Gonna Sing Again!  —  I'M GONNA SING AGAIN!  —  EXCLUSIVE  —  Lindsay Lohan — forever in search of a career resurrection — is now setting her sights on reigniting her singing career ... TMZ has learned.  —  Lindsay was in a New York City recording studio over the weekend, experimenting with various tracks.

Michael Jordan — I'm Having Identical Twins!  —  I'M HAVING IDENTICAL TWINS!  —  EXCLUSIVE  —  Michael Jordan is on his way to creating a basketball team of his own ... TMZ Sports has learned he's having IDENTICAL twin girls.  —  Michael's wife, Yvette Prieto, is pregnant, though we don't know how far along.