Fergie looks steps out with a friend on March 2nd, in Brentwood, CA. Credit: Brooks/Campos/INFphoto.com

Lots to celebrate in the Ferguson family! Fergie (real name: Stacy Ann Ferguson) and her sister Dana Ferguson stepped out in L.A.'s Brentwood neighborhood on Saturday, March 2 looking fashionable on their way to Dana's bridal shower.

Fergie, who is expecting her first child with husband Josh Duhamel, hosted the celebration for her younger sister. The Black Eyed Peas singer, 37, covered up her growing baby bump in a cream feather dress for the occasion, while the bride-to-be wore a sexy, turquoise peplum dress.

The mom-to-be shared a photo on Twitter of the bridal shower invite. "Please join me at a French garden party for lunch honoring the bride to be . . ." the adorable card said. The attire was listed as "garden party chic with a French twist."

"My lil sis's bridal shower was adorable!" Fergie tweeted. She also shared a photo of the two posing together and captioned the shot, "Awwww Dana Marie! Bridal shower. Sisters."