Demi Lovato Quits Tour, Enters Treatment Center  —  Disney star Demi Lovato has bailed on an international concert tour with the Jonas Brothers — and has checked into a treatment center to seek help for “emotional and physical issues” ... TMZ has confirmed through the singer's rep.

Cher on Chaz, Sonny, and Staying in the Spotlight  —  Cher tells Vanity Fair West Coast editor Krista Smith that she can't believe “Sonny and I still aren't in the [Rock and Roll] Hall of Fame, and it just seems kind of rude.  Sonny was a good writer, and we started something that no one else was doing.

Charlie Sheen Divorcing Brooke Mueller, Source Says  —  Charlie Sheen is filing for divorce on Monday from his wife Brooke Mueller, a source tells PEOPLE.  —  The couple, who married in 2008 and have twin 1-year-old boys, have been living apart since April following a Christmas fight that landed Sheen in jail.

Britney: I Need Protection from a ‘Shake Down!!’  —  The people in charge of Britney Spears are asking a judge to protect her from a potential “shake down” by a former bodyguard who they believe could release info that may put Britney in danger.  —  It all has to do with a lawsuit filed by Fernando Flores …

Shannon Tavarez Dies  —  Shannon Tavarez, the 11-year-old Broadway singer whose fight against cancer drew the attention of Alicia Keys and Rihanna, has died.  —  The soprano from Queens, New York, who recently played Young Nala in The Lion King on Broadway, passed away after a long battle with acute myeloid leukemia.

Check Out Jake Pavelka's New Girlfriend!  —  Bachelor Jake Pavelka has a new babe.  —  He has been seeing Meghan Jones, a wedding planner from Dallas, he tells UsMagazine.com.  —  The two made their public debut Monday at Dancing With the Stars' 200th episode party in Los Angeles.

LeAnn Rimes breaks down in tears as she opens up about her controversial romance with Eddie Cibrian  —  She's come under fire for being a ‘husband stealer’ and it seems all the criticism has taken a toll on LeAnn Rimes.  —  The country singer broke down in tears as she was questioned …

‘Devil’ Of A Role For Leonardo DiCaprio  —  EXCLUSIVE: Leonardo DiCaprio is going to play one of the most prolific serial killers in Chicago history, the 19th Century equivalent of Hannibal Lecter.  DiCaprio and his Appian Way partner Jennifer Killoran and Double Features partners Michael Shamberg …

Kim Kardashian — Dreaming Up an Album  —  Kim Kardashian is recording an album.  As in music.  As in singing ... TMZ has learned.  —  We're told Kim's recently been in the studio with top notch writer/producer/performer The-Dream, whose hits include Rihanna's “Umbrella” and Beyonce's “Single Ladies (Put a Ring on It).”

Lisa Rinna Warns Girls: 'Don't Mess With Your Lips'  —  Lisa Rinna, who just confessed to undergoing surgery to remove her silicone lip injections, has become a big advocate of a more natural look, telling me, “I want young women to learn to love themselves.  You don't need to change anything especially your lips.”

Kiefer Sutherland In Broadway Stage Turn  —  Last time Kiefer Sutherland was hanging around New York, he was here saving the world as Jack Bauer in the final season of the Fox series 24.  Sutherland is coming back to town, this time to star in a revival of the Jason Miller play That Championship Season.

Is This The Worst Newscast Opening Ever?  (VIDEO)  —  What's Your Reaction:  —  When Channel 10 in San Diego started their 11:00 a.m. newscast, it seems that one (or all) of their crew was undoubtedly asleep at the wheel.  This hilarious one-minute video posted on YouTube yesterday claims …

Alanis Morissette Relaxes in a Bikini in Mexico  —  Alanis Morissette was leaving nothing up to the imagination during her vacation in Los Cabos, Mexico.  —  The singer, who is expecting her first child, soaked up the sun and relaxed in a tiny, white bikini while hanging out with her husband …

Ricky Martin Cried ‘Like a Baby’ After Revealing His Sexuality  —  Ricky Martin put on a brave face last March when he revealed to the world that he is gay.  —  But behind the scenes the singer was caught up in a maelstrom of emotion, he tells Oprah Winfrey in an interview airing on her show Tuesday.

TV Land Comedy Series ‘Hot In Cleveland’ Reunites Mary Tyler Moore and Betty White  —  EXCLUSIVE: After more than three decades, former Mary Tyler Moore Show sparring partners Mary Tyler Moore and Betty White are about to go another round.  Moore has been tapped to guest star …

Jamie Chung Joins ‘Hangover 2’ Cast … Jamie Chung is boarding The Hangover Part II, currently shooting under the direction of Todd Phillips.  —  The Warner Bros. and Legendary Pictures sequel reunites the stars from the original — Bradley Cooper, Zach Galifianakis, Ed Helms and Justin Bartha …

Sarah Silverman on Her Upcoming Nude Scene: ‘I Am Begging You to Lower Your Expectations!’  —  Last Friday, the WME screening room in Los Angeles was filled with jugglers, musicians, and stars of The Office who'd come out to support Rainn Wilson for the launch of his spiritual new book, Soul Pancake.

Life & Style exclusive: AnnaLynne McCord and Kellan Lutz split!  —  Life & Style's Scene Queens can exclusively report that after almost two years of dating, Twilight hottie Kellan Lutz and 90210 star AnnaLynne McCord have officially called it quits, a source confirms.