Vincent Herbert said in an interview Tuesday the 26-year-old Grammy winner is "doing wonderful, doing great."
Gaga, whose real name is Stefani Germanotta, canceled her "Born This Way Ball" tour last month. She'd hurt herself while performing some time ago.
Herbert says Gaga is finishing her new album, "ARTPOP," and is "ready to get back to work."
He calls the new album "very, very refreshing" and says the "Born This Way" singer continues to "push the envelope."
Herbert adds: "I can't wait for the world to hear her new music and see her come back healthy, strong and better than ever."