EXCLUSIVE: Selena Gomez's Heartbreak — Justin Bieber's Affair With Rihanna Revealed  —  Life & Style can exclusively reveal the reason Selena Gomez broke up with Justin Bieber after two years of dating: Selena found out that Justin had cheated on her in the early stages of their relationship — with Rihanna.

‘Honey Boo Boo’ Star Mama June — I LOST 100 LBS!!!  —  I LOST 100 LBS  —  EXCLUSIVE  —  “Honey Boo Boo” star Mama June tells TMZ ... she's dropped more than 100 POUNDS in the past 2 years — and claims she did it all WITHOUT DIETING OR A GYM!  —  The TLC reality superstar says she weighed …

Cover Story: Brandi Glanville Cheated on Eddie Cibrian Before LeAnn Rimes Affair  —  The plot thickens.  As Us Weekly revealed nearly four years ago, both Eddie Cibrian and LeAnn Rimes cheated on their respective spouses when the Northern Lights costars embarked on an infamous romance in 2009 …

Kim Kardashian's Doctor — Divorce Stress Puts Fetus AT RISK!  —  Kim Kardashian's doctor thinks Kim's unborn baby may be at risk, because of the stress Kris Humphries is causing by dragging out their divorce ... TMZ has learned.  —  Sources familiar with the situation tell TMZ …

Exclusive: Adam Brody, Leighton Meester Dating!  —  Credit: Henry S. Dziekan III/WireImage.com  —  It's like a teenage dream come true!  Adam Brody and Leighton Meester, both veterans of the teen drama genre, have been secretly dating for weeks, sources confirm to Us Weekly.

Rihanna to Chris Brown — I'll Ride with You NO MATTER WHAT  —  I'll Ride with You  —  NO MATTER WHAT  —  9:42 AM PT — A rep for Brown says the singer did NOT write the Instagram post ... insinuating that it was drafted by an imposter.  —  You really buyin' that?

Ryan Lochte recreates Nirvana's iconic ‘Nevermind’ album cover: idiotic or funny?  —  Ryan Lochte is featured in the new issue of ESPN The Magazine.  Apparently, the theme of the “Music Issue” is getting star athletes to dress up like rock stars.  And Lochte was chosen to recreate Nirvana's iconic Nevermind album cover.

SARAH JESSICA PARKER WALKS HER ADORABLE KIDS TO SCHOOL  —  Sarah Jessica Parker was snapped walking son James to school on Tuesday in New York City, and later we spotted her with her darling daughters Tabitha and Marion.  Those matching snow pants are toooo cute!

Chris Brown — Shows Up to Court WITH RIHANNA!!!  —  2:11 PM PT — Rihanna and Chris Brown just walked out of the courtroom together arm in arm.  One person at the courthouse tells us Brown looked “dejected” ... and Rihanna was trying to smile and cheer him up.

Breasts, Buttocks, Genitals Ban At Grammys - But Also Message-Sending Lapel Pins  —  Isn't it pointless for CBS Standard And Practice to issue this ‘Wardrobe Advisory’ in advance of the 55th Annual Grammys broadcast this Sunday when nudity is the norm at that awards show?

Beyoncé's Publicist Wants to Erase These Six Unflattering Photos from the Internet  —  Yesterday, we discovered that Kanye West had apparently forced the photo wire service Getty to remove a series of photos of himself in a skirt.  Today, Beyoncé's publicist is going around trying …

Welcome Kylie Minogue To The Roc Nation Family  —  “Roc Nation would like to welcome Aussie singer, recording artist, songwriter, actress and designer Kylie Minogue to the family.  —  In a career now spanning 25 years, Kylie has released 11 studio albums, two live CDs, eight live concert DVDs …

EXCLUSIVE: Real Housewives of New Jersey's Teresa Giudice: “Joe Really Wants a Baby Boy”  —  Although The Real Housewives of New Jersey's Teresa Giudice has publicly declared she is “done” having kids after raising four daughters with husband Joe Giudice, In Touch can exclusively reveal …

Hayden Panettiere is in love  —  Hayden Panettiere leaving the Chateau Marmont in West Hollywood (1/11)  —  Hayden Panettiere hooked up with her old boyfriend, 6'6" Ukrainian boxer Wladimir Klitschko, again over the holidays and now her friends are starting to throw out the “L” word . . . and I'm not talking about “long.