Gwen Stefani announced that she's pregnant at a concert in Ft. Lauderdale, Fla., on Wednesday evening, 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 shouted during a sing-along of her song "Crash."

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, who fronted the rock band Bush, has a 16-year-old daughter with fashion designer Pearl Lowe.

Stefani added at the Florida concert, the final stop on her U.S. tour, that "this is the end of a huge chapter for me."

The No Doubt singer earlier this year released her first solo album, "Love.Angel.Music.Baby.," which featured the hit single "Hollaback Girl."

She has received five Grammy nominations including album of the year for "Love.Angel.Music.Baby."