EXCLUSIVE: Reese Witherspoon, Jim Toth Engaged!  —  Reese Witherspoon is ready to walk down the aisle again!  —  She and Hollywood agent Jim Toth are engaged, her rep confirms exclusively to UsMagazine.com.  “They are extremely happy,” the rep tells Us.  —  The Oscar-winning actress …

‘Teen Mom’ Released from Jail  —  “Teen Mom” Amber Portwood has just been released from an Indiana jail ... TMZ has learned.  —  Portwood was locked up yesterday — when she was arrested and charged with felony domestic violence for allegedly beating up her baby daddy in front of their daughter.

EXCLUSIVE: Girls Gone Wild Joe Francis' Wife Moved Out, Says Source  —  Less than two months after Joe Francis and long-term girlfriend Christina McLarty married in a civil ceremony at his luxurious Mexican retreat, the pair have split, RadarOnline.com has exclusively learned.

Thor Star Chris Hemsworth Gets Married  —  Thor star Chris Hemsworth and his longtime girlfriend, Spanish actress Elsa Pataky, are now husband and wife, PEOPLE has learned.  —  Hemsworth, 27, who portrays the Marvel Comics character in the upcoming films, Thor (costarring Natalie Portman) and The Avengers, grew up in Australia.

Expert: LeAnn Rimes' Engagement Ring Worth $85,000  —  With the news of LeAnn Rimes' engagement to Eddie Cibrian still making waves, Celebuzz spoke to “Diamond Guy” to the stars David Mamane, CEO of MyJewelryBox.com, about LeAnn's brand new 5-carat oval diamond in a platinum and rose-gold setting.

Five Things to Know About Natalie Portman's Fiancé Benjamin Millepied  —  He may be engaged to one of the season's most buzzed-about movie stars but Natalie Portman's new fiancé, Benjamin Millepied, is a superstar in his own right in the world of ballet.

EXCLUSIVE: Charlie Sheen Back Partying, Misses Family Christmas  —  Charlie Sheen is partying hard once again and missed THREE family Christmas events as he lived the high life, RadarOnline.com has learned exclusively.  —  PHOTOS: Charlie Sheen's Difficult Year

EXCLUSIVE: Rihanna and Matt Kemp Call It Quits  —  Time for Rihanna to pen a new break-up ballad: After almost a year together, she and Matt Kemp have called it quits, an insider close to the singer tells UsMagazine.com.  —  “It happened over the last few weeks,” explains the source.

Liquid layover  —  Like many holiday travelers, “Gossip Girl” star Ed Westwick endured a long layover at the airport.  He was trapped in Iceland for 48 hours waiting for a flight to London that was diverted, a source tells us.  During the endless delay, “He walked into the duty-free shop and bought a bottle of vodka,” one spy said.

Kelsey Grammer: Yes, I'm Getting Married - Because I'm in Love  —  Of course Kelsey Grammer is anxious to get married: That's because he's deeply in love with his fiancée Kayte Walsh.  —  The actor has confirmed an impending wedding while also responding to a barrage of reports about him and Walsh …

Conrad Murray to Prosecutor: So Whatcha Got?  —  Dr. Conrad Murray's preliminary hearing in the Michael Jackson manslaughter case ... set for next Tuesday ... will be a one-sided affair, because TMZ has learned Murray's side won't utter a peep.  —  Sources connected with Murray's defense …

Justena: Tonsil Hockey?  —  So instead of Jelena, we're using Justena, because...well we don't really know why.  We got a couple different emails about a picture of Justin and Selena “kissing,” asking us to debunk the myth that it was real.  However, we think this picture is 100% authentic.

Leighton Meester Reveals Her One ‘Really Hard’ Breakup  —  Romance hasn't come easy for Leighton Meester over the years - and that's okay with her.  —  “I think that the importance of love is really strong for me in my life, whether it's a guy or a friend or just my puppy,” the Gossip Girl actress …

Kate Gosselin Makes New Year's Resolution (Look Out, Fellas!)  —  Kate Gosselin certainly had a dramatic year in 2010, but now she's looking to put her past behind her and focus on 2011 with a surprising New Year's resolution to find a new man.  —  “No one wants to be a single parent,” a friend of Kate's tells me.

Brad Pitt & Angelina Jolie Have Family Time in Namibia  —  Angelina Jolie and Brad Pitt have made good on their word to have an adventure over the holidays.  —  The couple and their six children spent the last week or so - including Christmas - in the African country of Namibia.

“Science sense” list trashes celebrity health tips  —  LONDON (Reuters) - Science campaigners laid bare some of the most dubious celebrity-endorsed health tips on Wednesday, rubbishing ideas such as reabsorbing sperm and wearing silicone bracelets to boost energy.