She's currently in the midst of her first-ever major concert tour, which comes in the wake of Duff's new film, "A Cinderella Story." The 16-year-old performer has four new songs on the soundtrack, including a duet with her older sister, Haylie, on a remake of the Go-Go's "Our Lips are Sealed." And she's also finishing her second album, which is slated to come out on Sept. 28, her 17th birthday.
"I think sometimes I definitely am overwhelmed," says Duff, the former star of the Disney Channel series "Lizzie McGuire." Her previous films include "The Lizzie McGuire Movie," "Agent Cody Banks" and "Cheaper By the Dozen."
"But I'm young and I have a lot of energy and I enjoy everything I do, and I'm so lucky to be doing it all right now. I think that's what keeps me going."
She'll keep going for the foreseeable future: In addition to the new album, Duff also has three more movies on her plate, including "Raise Your Voice" (Oct. 8) and "A Perfect Man" (Feb. 15), as well as the to-be-filmed "Wishful Thinking."