Fergie's friends throw her a 'gay-by' shower

Fergie's friends sure know how to throw a baby shower!

The songstress was the center of attention at a "gay-by" shower on Sunday, thrown by her gay best friends, that featured a drag performance, gift opening and plenty of cocktails (for the guests, not Fergie) from Cuca Fresca Organic Cachaca and Tallarico Vodka.

According to a source, Fergie, 38, was "glowing."

"There was a lot of love in the room -- and everyone was on cloud nine," said the source.

In addition to Fergie's pals who threw the L.A. bash -- agent Sean Patterson, designers Dean and Dan Caten and hairstylist Andy Lecompte -- the co-ed guest list included Adam Lambert, Julianne Hough and Lance Bass.

Fergie and hubby Josh Duhamel are expecting a son.