Happy 22nd Birthday, Taylor Swift!
Happy 22nd Birthday, Taylor Swift!,  "Happy birthday Taylor," tweet a chorus of Twitter users wishing American singer Taylor Swift a a happy 22nd birthday on the morning of December 13.

"Happy birthday Taylor Alison Swift. You are such a beautiful person inside and out. I hope you enjoy every moment & get loads of presents," "Time to celebrate 'cause it's Tswizzle's bday! Happy Birthday Taylor!!!!! @taylorswift13" and "Long live to Taylor Swift, cuz she taught me to speak now, to live my dreams I see sparks fly whenever she smiles Happy Birthday Taylor," read tweets.

An episode of the MTV show True Life called "Addicted to Porn" has triggered the trending topics "#sexfact" and "addicted to porn." Twitter users are running with the sex theme and are sharing "facts" about sex with their followers or confessing to being addicted to pornography.

Spanish-speaking Twitter users are discussing the Spanish proverb "Martes y trece ni te cases ni te embarques" (which roughly translates to "Tuesday the 13th neither get married nor start a journey") with the fourth place hashtag "#Martesy13."

The new 50 Cent video "I Just Wanna" featuring Haitian-American rapper Tony Yayo is making its way around the microblog. Twitterers are also chatting about American singer "Erykah Badu."

The name of the character "Tyrone" Biggums played by Dave Chappelle is trending in second place, the R&B and Soul music channel "VH1 Soul" is in third place, and the movies "Due Date" and "Jumping the Broom" are in sixth and seventh places.

The top 10 most talked about topics on Twitter on December 13 at 7:30 AM GMT are:
#sexfact (new)
Tyrone (new)
VH1 Soul (new)
#Martesy13 (new)
Erykah Badu (new)
#DueDate (new)
Jumping the Broom (new)
Happy Birthday Taylor (new)
Addicted to Porn (new)
Tony Yayo (new)