OK! COVER: Justin Theroux Finally Proposes: Why Jennifer Aniston Said No

Engagement Shocker! Justin Theroux finally proposes: Why Jennifer Aniston said No.

OK! GALLERY: JENNIFER ANISTON AND JUSTIN THEROUX ARE LOVED UP IN ROME

• What Justin did wrong.

• The fight over her ring.

• Brad's unexpected advice to Jen.

OK! GALLERY: JENNIFER ANISTON AND JUSTIN THEROUX ARE ALL SMILES AS THEY HOLD HANDS IN PARIS

FOR MORE ON JENNIFER AND JUSTIN, PICK UP THE NEW ISSUE OF OK!, ON SALE NOW!

MORE IN THIS ISSUE OF OK!:

• A jealous Kanye West screens Kim Kardashian’s phone calls!

• Jennifer Lopez’s boy toy, Casper Smart, battles rumor he’s gay.

• Friends worry party girl Rihanna could wind up pregnant — or worse…

• Surprise! Teen Mom Jenelle Evans breaks up with fiancé Gary Head again.

• Jessica Simpson’s frenzy over her failure to lose baby weight makes fiancé Eric Johnson cancel summer wedding.

• 50 Cent survives brush with the Grim Reaper one more time!

• Check your calendar: Spice Girls, 98 Degrees and Backstreet Boys are back?