New York Gwen Stefani announced that she's pregnant while performing at a concert in Fort Lauderdale, Fla., People magazine reported on its Web site.
"I want you to say it loud enough so the baby hears it," the 36-year-old pop star was quoted as shouting during a sing-along of her song "Crash" on Wednesday night.
The baby is reportedly due in June.
It will be the first child for Stefani and Gavin Rossdale, 38, who were married three years ago. Rossdale fronted the rock band Bush.
Stefani added at the Florida concert, the final stop on her U.S. tour: "This is the end of a huge chapter for me."