Beyonce’s Pregnancy, Ryan Dunn’s Death Top 2011 Twitter Topics

'Pretty Little Liars,' Charlie Sheen were also hot on social networking site this year.

It was a busy year on Twitter. People tweeted about everything from tragedy to triumph in 2011. The social networking site has released some of the year’s biggest trending topics and hashtags as 2011 comes to a close.

Beyoncé’s pregnancy reveal at the VMAs back in August tops the site’s list for most tweets per second (TPS). The headline-making news received 9,000 tweets per second. ABC Family’s mystery-drenched teen drama “Pretty Little Liars,” viral-video sensation Rebecca Black, the Super Bowl and Charlie Sheen, with his penchant for #tigerblood, all made Twitter’s list of hot topics and hashtags for the year.

Beyoncé surprised everyone on August 28 when she revealed at the MTV VMAs that she and her hubby, Jay-Z, were expecting their first child. She first teased the announcement to photographers on the VMA black carpet, where she appeared decked out in an orange gown, touching her bump. But the big reveal took place during her performance of “Love on Top”: At the end of the song, B dropped her mic, unbuttoned her jacket and put her belly on full display.

“Thor,” “The Dark Knight Rises,” “X-Men: First Class,” “Fast Five” and “Green Hornet” all made the Year in Review list in the movies category.
The top five actresses on Twitter in 2011 were Elizabeth Taylor (who died earlier this year), Mila Kunis, Anne Hathaway, Raven-Symoné and Natalie Portman.

Charlie Sheen topped the actors’ list, where he’s joined by Macaulay Culkin, “Jackass” star Ryan Dunn (who died over the summer), Ricky Gervais and late actor Pete Postlethwaite. Dunn spent more than a decade on MTV as part of the popular stunt show. He was killed in a car accident in Pennsylvania on June 20, and the outpouring of grief for the 34-year-old in the wake of the shocking news was overwhelming. He was remembered by friends like Johnny Knoxville, Dave England, Tom Green and his longtime pal Bam Margera .

Rebecca Black and “Friday,” the late singer Nate Dogg , the Britney Spears album Femme Fatale, Gerry Rafferty and Gil Scott-Heron topped the music-related list. In TV, “Pretty Little Liars,” “Two and a Half Men,” “The Craigslist Killer,” the Golden Globe Awards and the People’s Choice Awards all made the cut.

The top five hashtags covered a variety of topics ranging from world news to pop culture moments: #egypt, #tigerblood, #threewordstoliveby, #idontunderstandwhy and #japan all had people talking in 2011.