Celebrities are offering their support and prayers for Whitney Houston's daughter, who authorities say was recently found face down and unresponsive in a bathtub in a suburban Atlanta townhome.

Police said 21-year-old Bobbi Kristina Brown was taken Saturday to a hospital in the northern Atlanta suburb of Roswell, Georgia.

Singer Katy Perry dazzled at Sunday's Super Bowl halftime show in a spectacular performance featuring dancing sharks, a prowling metallic lion and a levitating star that shot fireworks into the night sky.

Perry stalked into the University of Phoenix Stadium field in Glendale, Arizona riding the huge, fiery-eyed lion as she sang her megahit "Roar" while wearing a flame-festooned dress.

The daughter of late singer Whitney Houston was pulled unconscious from her bathtub Saturday at her Georgia home, in an eerie echo of her mother's tragic death three years ago.

Bobbi Kristina Brown, 21, was found by her husband and a friend at her home in Roswell, roughly 22 miles (35 kilometers) north of Atlanta, Roswell Police Department spokeswoman Lisa Holland said.

U.S. First Lady Michelle Obama on Friday defended Clint Eastwood's hit film "American Sniper," which has been accused of whitewashing the story of the Iraq war.

"While I know there have been critics, I felt that, more often than not, this film touches on many of the emotions and experiences that I've heard firsthand from military families over these past few years," she said.

The concert promoter AEG was in no way responsible for Michael Jackson's death, a California court ruled Friday as it rejected an appeal brought by the singer's mother.

Katherine Jackson had initially sued AEG for negligence in 2013, principally for having hired Conrad Murray, the doctor who looked after the pop star as he prepared for his "This Is It" series of comeback shows that were to have been held in London.

Colombian pop star Shakira has given birth to a baby boy, named Sasha, her second child with Barcelona footballer Gerard Pique, the celebrity couple announced on Friday.

"We are happy to announce the birth of Sasha Pique Mebarak, son of Shakira Mebarak and Gerard Pique, born January 29 at 9:54pm, in Barcelona," they said in a statement.

U.S. rap star Jay Z made a $56-million foray into the music streaming business Friday, buying Norway's Wimp in a bid to compete with giants like Spotify and Apple.

The platinum-selling artist and businessman used his controlling stake in Project Panther Bidco to launch a 464-million-kronor ($56-million, 49-million-euro) bid for Aspiro, the Swedish-listed company that owns Norwegian streaming service Wimp.

New movies starring Juliette Binoche, Nicole Kidman, Cate Blanchett, Helen Mirren and Lea Seydoux will put women in the spotlight when they premiere at the 65th Berlin film festival starting Thursday.

The 11-day event in the frosty German capital, the first major cinema showcase in Europe each year, will begin with Oscar winner Binoche playing Josephine Peary, who accompanied her explorer husband Robert on treacherous Arctic expeditions, in "Nobody Wants the Night".

Rap mogul Marion "Suge" Knight was arrested for murder Friday in connection with a hit-and-run that left one man dead and another in the hospital, Los Angeles authorities said.

The rapper is being held in lieu of $2 million in bail, Sergeant Diane Hecht of the Los Angeles County Sheriff's Office told AFP.

Justin Bieber has apologized for his bad behavior in a new video posted to Facebook.

The singer says in a 2-minute video posted early Thursday that his "arrogant and conceited" attitude over the last two years was just to cover up his true feelings. He said growing up in the industry is tough.