Singer Janet Jackson has returned to the stage

Singer Janet Jackson has returned to the stage, having called off several gigs on her tour after suffering migraines linked to vertigo.

"It feels so good to be back after being down just a little bit," the 42-year-old star told the crowd at the Verizon Center in Washington.

Symptoms of the illness include dizziness and loss of balance.

Jackson's manager, Kenneth Crear, said she was feeling "much better" and the North American tour would continue.

The Grammy-winning star opened the show with Pleasure Principle, followed by What Have You Done for Me Lately and Feedback.

At the end of the show, the emotional star told the crowd: "I love you DC so much."

Maurice, 28, from Washington said: "She was perfect. If she was sick, she's not sick anymore. She can still do it at 42."

It is Jackson's first North American tour in seven years.

Upcoming gigs include Atlanta, Houston, Dallas and New York.

Jackson fell ill in Canada in September and was taken to hospital.

Five shows in the US and one in Canada had to be rescheduled after doctors ordered the singer to rest.

Ailing Janet Jackson cancels more concerts

The doctor has again ordered Janet Jackson to postpone a return to her "Rock Witchu" tour.

Jackson was scheduled to resume her tour Monday night at the Turning Stone Resort in New York after canceling a show over the weekend in Connecticut. A message posted on the resort and casino's Web site stated the show had been canceled at the advice of Jackson's doctor.

She has since postponed several shows, including Thursday night's show at Madison Square Garden in New York. Promoters say the dates will be rescheduled.

No one is saying what is ailing Jackson, who was rushed to a hospital in Montreal before a concert in late September.

Jackson is on her first North American tour in seven years.

janet doing what have you done for me lately into Feedback:

Janet Jackson - If - Live - Rock Witchu Tour: