Janet Jackson addresses health concerns in Twitter post

Janet Jackson accepts the ultimate icon: music dance visual award at the BET Awards at the Microsoft Theater on Sunday, June 28, 2015, in Los Angeles.

Chris Pizzello/Invision/AP

LOS ANGELES -- Janet Jackson says she doesn't have cancer, but she isn't specifying the illness that interfered with a concert tour.

On her Twitter account Wednesday, Jackson posted a two-minute clip from her song "The Great Forever," followed by a written message in which she said she was "recovering" but offered no further details.

"Remember... believe it when you hear it from my lips," she wrote. "The rumors are untrue. I do not have cancer. I'm recovering."

The denial was an apparent response to online reports that she was suffering from throat cancer.

The announcement came less than two weeks after Jackson said she was postponing her "Unbreakable" tour to have an unspecified surgical procedure.

Jackson wrote Wednesday her doctors have approved her concerts as scheduled in Europe and that shows that had been postponed would be rescheduled.

The 49-year-old singer posted a message on her website and social media sites in late December announcing that all future tour dates had been postponed until the spring. No new dates were announced.

"I need you to know, I learned today, from my doctors that I must have surgery soon. It breaks my heart to tell you that I am forced to postpone the Unbreakable Tour until the spring," the December 24 message read. "Every date will be rescheduled. Please hold on to your tickets."

Jackson had been next scheduled to perform Saturday in Denver. She was scheduled to perform in Europe in March.

Her "Unbreakable" tour has been in the Top 20 global concert tour listing compiled by Pollstar.

Jackson is a member of one of pop music's royal families, sister of the late Michael Jackson and the Jackson Five. Her 1986 album "Control" made her a music star in her own right, a disc that spawned hits like "What Have You Done For Me Lately" and "Nasty."

The singer built a steadily successful career with hits like "If," ''All For You" and "That's the Way Love Goes." Last year she released the album "Unbreakable," her first new disc since 2008.

She was nominated for the Rock and Roll Hall of Fame last year for the first time, but she was not elected.