Entertainment buzz: Facebook's top 10 moments of the week

The week got off to a good start with the MTV Movie Awards, which saw Hollywood -- and a shirtless Zac Efron -- step out for some good old-fashioned golden popcorn trophies.

Stars also came out in droves for the first weekend of the annual Coachella music festival, and HBO surprised fans again with another wedding surprise on "Game of Thrones."

Facebook has tallied the top 10 buzziest stories in entertainment this week, and all of those topics made the most-talked-about list. What had you talking? See what you missed in this exclusive list on CBSNews.com.

1. 2014 MTV Movie Awards

Hollywood stars stepped out for the 2014 MTV Movie Awards where "The Hunger Games: Catching Fire" took home the ceremony's biggest award: movie of the year.

Channing Tatum and Mark Wahlberg scored special awards, while Jared Leto and Jonah Hill scooped up acting honors. Viewers were also treated to a performance by Rihanna and Eminem at the ceremony, hosted by Conan O'Brien.

But probably one of the most talked about moment of the night came when Zac Efron went shirtless.

2. Coachella Music Festival

The first weekend of Coachella kicked off last Friday with a much-talked-about reunion of hip-hop duo OutKast. Other performers included Broken Bells, Arcade Fire, Neutral Milk Hotel, Lana Del Ray, Neko Case and more.

Leonardo DiCaprio was even spotted dancing while taking in MGMT's set, and several other stars were spotted at the event and nearby parties.

Artists are gearing up for round 2 as the second Coachella weekend runs from April 18-20.

3. The "Purple Wedding" and Season 4, Episode 2 of "Game of Thrones"

There was another wedding bombshell on Sunday's episode of HBO's "Game of Thrones." We won't ruin it for you here in case you haven't watched yet -- and didn't read the books. But let's just say, the episode had viewers talking all week.

"Game of Thrones" returns for episode 3 of season 4 this Sunday.

4. Singer Lana Del Ray releases her new single, "West Coast"

Not only did Lana Del Ray perform at Coachella this past week, but the songstress also unveiled her new single "West Coast," which will appear on her upcoming album "Ultraviolence."

Check it out below:

5. The late Paul Walker's brothers to help finish scenes in "Fast & Furious 7"

Paul Walker's brothers, Caleb and Cody Walker, will be lending a hand to help finish "Fast & Furious 7"'s action scenes.

Production on the seventh installment of the franchise was put on hold for several months after Walker's death, and resumed this month. "Fast & Furious 7" will be released on April 10, 2015.

6. Miley Cyrus hospitalized after allergic reaction; cancels "Bangerz" tour appearances

Miley Cyrus has been cooped up in a hospital this week after having a severe allergic reaction to the antibiotic cephalexin, forcing her to cancel a string of tour dates. Cyrus has tweeted that she's miserable and can't stop crying because she's upset that she's disappointing her fans.

The 21-year-old singer's next scheduled tour date is Monday in Philadelphia.

7. Comedian Amy Schumer spoofs "Newsroom" creator Aaron Sorkin in Comedy Central's "The Foodroom"

Comedian Amy Schumer and Josh Charles of "The Good Wife" fame did a great little parody of HBO's "The Newsroom" during an episode this week of "Inside Amy Schumer" on Comedy Central.

Schumer and Charles portray two employees trying to figure out work and life while working at a a fast food restaurant.

8. April 19 is Record Store Day

There will be plenty of reissues and special releases to coincide with Record Store Day on April 19. The eighth annual tribute to indie CD and record shops will see special releases by everyone from Jay Z and Bruce Springsteen to Green Day and Dolly Parton.

9. Disney night on ABC's "Dancing with the Stars"

There were plenty of good scores to go around on Monday night's episode of "Dancing with the Stars," which also saw its first perfect score of the season.

Disney set the tone for the teams who all picked tunes from Disney movies for their dances -- and Donny Osmond sat in as a guest judge.

Another team was eliminated -- Cody Simpson and Witney Carson were sent packing. "This has been a very new experience and an amazing experience. Obviously it's tough, but it is what it is," the 17-year-old Simpson said.

10. Actors and former "Twilight" couple Robert Pattinson and Kristen Stewart may both be heading to Cannes Film Festival

Former couple Robert Pattinson and Kristen Stewart could be crossing paths at the upcoming 2014 Cannes Film Festival in France.

Both stars have films making their debut at the festival. Stewart's upcoming movie, "Clouds of Sils Maria," will debut this year in Cannes, while Pattinson's "The Rover" with Julianne Moore open there, too.

*Buzz rankings reflect the top entertainment topics being discussed on Facebook, April 13 - 16, in the United States. Rankings are based on both frequency and momentum: the Facebook conversations that not only got a lot of buzz during the week, but also saw a notable increase compared with the previous week.