Cha Cha from ‘Grease’ Dies — Dead at 63  —  Annette Charles — who played Cha Cha in the 1978 movie “Grease” — died last night in her Los Angeles home ... her rep tells TMZ.  —  Her rep tells us, she passed away due to complications from cancer.  —  The family is planning to release a full statement within the next 24 hours.

Into the Fire  —  She was a squeaky-clean disney dream, the one parents were happy to see on their tween's iPod.  Then Demi Lovato hit the skids.  Now, channeling the languid fall style of her brat-pack-era namesake, she discusses her ordeal with a spectacular honesty—setting the tone for a bold new career.

COVER STORY: Marc Anthony “Begging” Jennifer Lopez “to Take Him Back”  —  Jennifer Lopez is ready to let go — but Marc Anthony isn't.  —  Although Lopez has joyously embraced life as a single working mom since the couple announced the end of their seven-year marriage nearly three weeks ago …

Kelly Osbourne Slams Christina Aguilera: She's a “Fat Bitch!”  —  Kelly Osbourne has never been a fan of Christina Aguilera, but the 26-year-old took their feud to a new level during a recent episode of E!'s Fashion Police.  —  After Joan Rivers, 78, said Aguilera looked “stuffed into” …

E! will air Kim Kardashian wedding extravaganza for FOUR HOURS  —  Oh GOD.  E! is already planning a two-night primetime gala, and they haven't even promised that the telecast will include the actual wedding!  Check out this save-the-date, which is quite proper and ladylike save for the big E, erect and ready for action:

Kate Bosworth goes back to Coldplay, after alleged 2009 affair with Chris Martin  —  These are some new photos of Kate Bosworth leaving a Coldplay concert last night in LA. She's with a friend that, for my purposes, I'm assuming is gay.  Because seriously, what straight guy is going to take Kate Bosworth …

Jen Aniston, Justin Theroux “Giddy in Love” on Hawaiian Vacation  —  It's almost like they're on a honeymoon!  —  Jennifer Aniston and Justin Theroux are having the time of their lives in Hawaii.  With Theroux's 40th birthday on August 10, the couple touched down in paradise on Sunday …

FIRST LOOK - HENRY CAVILL AS THE MAN OF STEEL  —  A Superman is born!  —  Warner Bros. has released the first photo of Henry Cavill in the new Superman reboot: Man of Steel.  —  Cavill has been on a crazy workout plan and eating 5,000 calories a day to bulk up for the role — we can tell!

Caring For My Kids' Hair  —  Having four children, with one having straight hair and three curly, it's a bit of a new world for me.  Growing up with straight hair myself, that was all I really knew how to work with.  It was pretty straightforward: wash, air dry, done.

EXCLUSIVE: MTV Challenge's Brad and Tori Fiorenza Have a Baby Boy  —  MTV has a new family member!  —  The Challenge's Brad and Tori Fiorenza welcomed a baby boy Thursday afternoon in Chicago.  Brad tells Us Weekly exclusively that Tori, 24, and the couple's son, John Brady Fiorenza, “are doing well.”

Val Kilmer Accused of Being a Deadbeat Dad  —  Val Kilmer's ex-wife claims the actor has stiffed her on child support payments ... according to documents obtained by TMZ ... and now she's going after his property in order to get what she claims is rightfully owed.

US Weekly: Ryan Reynolds broke up with Charlize Theron because she wanted a family  —  As Kaiser reported yesterday, US Weekly has a big story this week all about how Scarlett Johansson supposedly wants her ex husband, Ryan Reynolds, back so she can start a family with him and have his gerbil-faced babies.

Sofia Vergara: Being a Teen Mom Wasn't All Bad!  —  Teen Mom, starring Sofia Vergara!  —  The Modern Family bombshell, now 39, had her handsome son Manolo when she was just 19 — and the Colombian actress tells Redbook mag that the teenaged pregnancy had its benefits.

JUSTIN BIEBER TAKES CEE LO GREEN'S WORDS TO HEART  —  Justin Bieber dropped some major bucks while on a shopping spree at Armani Exchange in LA, on Monday.  Check out all those bags his security guard has to carry — no wonder he needs a beer!  —  We couldn't help but notice “The Biebs” …

SyFy's ‘Eureka’ Poised To End Its Run With Final 6-Episode Order  —  EXCLUSIVE: Syfy's Eureka will be coming to an end.  I've learned that the cable network is close to ordering six more episodes, which will mark the end of the sci-fi series starring Collin Ferguson and Salli Richardson-Whitfield.

Disney's ‘Order of the Seven’ Lands Director (Exclusive) … While Universal and Relativity jockey over their rival Snow White movies, Disney is quietly making moves on its own revisionist Snow White feature, a live-action project now called The Order of the Seven.

Carey Mulligan, Marcus Mumford Engaged After Five Months!  —  Childhood pen pals in London, actress Carey Mulligan and singer Marcus Mumford lost touch long ago, but a recent reunion renewed more than friendship.  —  After five months together, the Mumford & Sons singer, 24, popped the question to the Never Let Me Go star, 26.