After months of speculation, Khloe Kardashian is ending her four-year marriage to Lamar Odom.

The reality TV star filed for divorce Friday in Los Angeles County Superior Court, citing irreconcilable differences. She also wants her last name restored to Kardashian from Kardashian Odom.

Miley Cyrus headlined the annual Jingle Ball concert at Madison Square Garden, performing her hits "Wrecking Ball" and "We Can't Stop."

Lindsay Lohan introduced the singer Friday night, saying she loves that Cyrus is being "herself."

A coloring book featuring tea party darling Sen. Ted Cruz has become a hot-selling item in the U.S. this holiday season.

The cover features the beaming senator, a Texan who galvanized right-wingers during the budget fight that partially shut down the federal government in October. He points to a tea plant with leaves that say "Gun rights," ''Free Enterprise," and "Lower Taxes." At the very top is a leaf reading "White House."

A provocatively adorned outdoor Christmas tree in central Milan was just too naughty for city officials, who have ordered it denuded of its racy red sex toys.

The city said in an order that the Christmas season, "qualifying as a holiday for children and families, requires sobriety in urban decorations," in particular when using "traditional symbols that distinguish Christmas."

A teenager who may have had a grudge against a teacher opened fire with a shotgun at a Colorado high school Friday, wounding two students before killing himself.

Quick-thinking students at Arapahoe High School alerted the targeted teacher, who quickly left the building. The scene unfolded on the eve of the Newtown massacre anniversary, a somber reminder of the ever-present potential for violence in the nation's schools.

World stock markets were tentative Friday as investors prepared for the U.S. Federal Reserve's decision next week on whether to reduce its monetary stimulus.

Asia's heavyweight market benchmark, Tokyo's Nikkei 225, rose 0.4 percent to 15,403.11 and Hong Kong, Taiwan and Sydney also rose. Shanghai and Seoul declined.

Sponges are getting squeezed out of a distinctive role in evolution. A new study says they don't represent the oldest branch of the animal family tree after all.

The DNA research gives the spot instead to comb jellies, a group of gelatinous marine animals with names like the sea walnut and the sea gooseberry.

A 26-year-old woman disfigured by a tumor has received a new face in Poland's second such transplant.

The woman, identified only as Joanna, had great difficulty chewing, swallowing and talking. Dr. Adam Maciejewski, who led the 23-hour surgery last week, said Thursday he hopes the transplant of some 80 percent of the skin on the woman's face will give her back those functions.

Australia skipper Michael Clarke collected the International Cricket Council's best player award for 2013 on Friday, the day he started his 100th test.

Clarke was the leading run scorer in tests in the qualifying period in the 12 months to August 25, scoring 1,559 runs at an average of 70.86 including five centuries.

Instagram has added a new feature that lets users share photos and videos with up to 15 people rather than everyone who follows them on the popular Facebook-owned photo-sharing app.

Called Instagram Direct, the feature is available for Apple and Android phones, CEO Kevin Systrom said at a news event in New York City. Users can choose up to 15 people who follow them on Instagram to share photos or videos.