Credit: Monica Morgan/WireImage

Lauryn Hill's family keeps getting bigger.

The 36-year-old Grammy winner announced she is pregnant with her sixth child at the end of her Detroit concert on Saturday. "I'm going to be taking time off to give birth," she told the crowd.

The singer, who already has five children with Rohan Marley (son of reggae legend Bob Marley), first hinted about her pregnancy during a concert at L.A.'s Club Nokia in April.

"I keep having these children. I don't know if I'm the most fertile woman in America," she said. "I've got five big children, you believe that? If you ask anybody I went to high school with, they'd be puzzled. Wait till you hear the big secret, though."

Hill and Marley's other children are Zion David-Nesta, Selah, Joshua, John and Sarah.