Rihanna had to back out of a concert this weekend due to a case of laryngitis.

Rihanna canceled her Boston show because of a bout of laryngitis on Sunday, according to TMZ. The "Diamonds" singer was set to perform at the TD Garden arena, but Live Nation postponed the show, saying, "Unfortunately, following her sold-out concert on Friday, Rihanna has contracted laryngitis and per doctor's instruction is unable to perform this evening."

Big-budget 3D fantasy adventure flick "Oz the Great and Powerful" debuted atop the North American box office with a huge $80.3 million in weekend ticket sales, industry estimates showed Sunday.

Starring James Franco as a circus magician who ends up on the Yellow Brick Road, "The Wizard of Oz" prequel easily topped last week's leader, "Jack the Giant Slayer," according to box office tracker Exhibitor Relations.

Tiffani Thiessen is probably best known for her role as Kelly Kapowski on "Saved by the Bell," but the actress says she had no idea at that time how popular the teenage sitcom was.

"I mean, I was so young. I was 15 when I started that show," Thiessen, now 39, said in a recent interview.

Canadian teen heartthrob Justin Bieber has cancelled one of two scheduled concerts in Portugal next week, just after completing what he admitted had been a rough week in London, promoters said Saturday.

Within a few days, the 19-year-old pop sensation angered some of his fans for being late on stage, then suffered a health scare and was involved in a foul-mouthed confrontation with a photographer.

Hollywood star Sean Penn, civil rights leader Jesse Jackson and a pair of U.S. politicians joined mourners at Venezuelan leader Hugo Chavez's funeral Friday, with the reverend praying for better U.S.-Venezuelan relations.

A somber-looking Penn, wearing a black suit and tie, sat among the crowd of foreign dignitaries who paid tribute to the leftist firebrand leader, who bonded with several American movie stars during his 14-year presidency.

Rubber-faced comic Jim Carrey returned to the big screen in fan-pleasing form Friday by way of the opening feature of the South by Southwest (SXSW) film festival.

"The Incredible Burt Wonderstone" stars Steve Carrell as a washed-out Las Vegas magician in ghastly sequined suits whose refusal to change with the times nearly costs him his life-long friendship with stage partner Anton Marvelton, played by Steve Buscemi.

Kelly Osbourne says she had a seizure and doctors are trying to figure out why.

The 28-year-old TV personality posted a photo on Twitter late Thursday of an IV in her tattooed left arm. She thanked her fans for their "beautiful well wishes."

Canadian pop star Justin Bieber returned to the stage Friday after a torrid 24 hours in which he suffered a health scare then lashed out at a photographer.

The 19-year-old said he had had a "rough week" and was "human" following the foul-mouthed confrontation with a paparazzi cameraman in London.

Leonardo DiCaprio says filming violent scenes like in "Django Unchained" doesn't deter him from wanting his movies to be great art.

The bloody revenge film about slavery before the U.S. Civil War has fueled some of the debate about whether Hollywood shows too much on-screen violence. DiCaprio portrays a ruthless plantation owner encountered by a freed slave and bounty hunter (Jamie Foxx and Christoph Waltz).

Justin Bieber is recovering after fainting backstage at a concert in London.

A spokeswoman for Bieber said late Thursday that the 19-year-old pop star was given oxygen and took a 20-minute reprieve after fainting backstage at London's O2 Arena.