In its web site, the magazine informed this Thursday that Stefani, 36, addressed the audience at a Florida Concert before singing a song and said: "I want you to sing as loud as you can so my baby can hear you".

The birth is expected to take place next June. This will be the singer's first born and her husband Gavin Rossdale, 38, whom she married to three years ago. Rossdale is already the father of a 16-year-old girl.

In the same concert, Stefani, who has been nominated for a Grammy five times thanks to her first solo album called "Love, Angel, Music, baby" said the birth of her first baby "will end a very long episode in my life".