A week after news broke that Katy Perry and Russell Brand are divorcing after a year of marriage, the pop singer has broken her silence.

On Saturday, she took to Twitter to open up publicly for the first time since the split.

"I am so grateful for all the love and support I've had from people around the world," she wrote. "You guys have made my heart happy again."

In another tweet minutes later, she addressed the tabloid chatter that has been swirling around since Brand filed for divorce in Los Angeles on December 30. "Concerning the gossip, I want to be clear that NO ONE speaks for me," she said, "Not a blog, magazine, 'close sources' or my family."

See a timeline of Katy Perry and Russell Brand's relationship.

The tweets come days before Perry is set to make her first public appearance at the People's Choice Awards on Wednesday [January 11] where she's up for a number of awards.

The People's Choice Awards marks the beginning of a slew of expected appearances from the singer. She's also slated to make two appearances on her California Dreams Tour later this month, one on January 19 in Jakarta, Indonesia, and another on January 22 in the Philippines.

Perry's next awards show appearance could take place February 12 at the Grammys, where she's up for two awards: Record of the Year and Best Pop Solo Performance for "Firework."

Brand released a statement at the time of the announcement, saying, "Sadly, Katy and I are ending our marriage. I will always adore her and I know we'll remain friends."