Pop’s hottest newcomer Ke$ha already has a No. 1 single with “Tik Tok,” and now she’s lending her songwriting talents to another superstar.

The 22-year-old singer, who released her debut album Animal last week, has penned a song for Rihanna. “I just wrote a song for Rihanna,” Ke$ha told BRAVO WebTV. While she didn’t divulge details, she did say that she “hopes” it will appear on RiRi’s next project.

Ke$ha sang the hook on Flo Rida’s chart-topper “Right Round.” Her songwriting credits include The Veronicas’ “This Love” and Miley Cyrus’ “The Time of Our Lives.”

Meanwhile, “Rude Boy” is slated to be the next single from Rihanna’s Rated R album, which is currently No. 14 on the Billboard 200.