Gwen Stefani joined Instagram today (Jan. 17) and she did so in big way. The pregnant singer posted a pic of herself, red lips and all, with a crown on her head, revealing the sex of her third child.

Stefani and rocker hubby Gavin Rossdale are expecting another boy.

The little guy, currently in utero, will join big brothers Kingston, 7, and Zuma, 5.

Given Stefani's impeccable style, since she is also a trend-setting fashion designer in addition to being a pop diva. The singer, 44, remains the queen of the castle.

She captioned the photo as such: "I was ready to hand over the crown. but I guess I am still queen of the house. #itsaboy #surroundedbyboys."