Who said princesses can't steal the spotlight in see-through dresses? Kerry Washington [1] proved it's possible [2] when she attended this year's Baby2Baby gala, an event that brings out [3] plenty of stylish stars in romantic dresses. Kerry's number in particular caught our eye, a Spring 2015 Giambattista Valli Couture design that somehow tied all the looks on the red carpet together, meeting sexy sophistication with feminine florals.

While Kerry's tulle gown was something to dream about, Jessica Biel [4], Rosie Huntington-Whiteley, Reese Witherspoon [5], Jessica Alba [6], and more showed off ensembles that were undeniably pretty — many of which were designed by Giambattista Valli, too. Read on to admire some of the most whimsical outfits worn this weekend.

Kerry Washington

Wearing Giambattista Valli.

Reese Witherspoon

Wearing Giambattista Valli.

Rachel Zoe

Wearing Rachel Zoe [7].

Jordana Brewster

Wearing Cushnie et Ochs.

Selma Blair

Wearing a Narcisco Rodriguez dress and Harry Winston jewels.

Jessica Alba

Wearing Giambattista Valli Spring '16.

Gwen Stefani

Wearing Marchesa Spring '16.

Jenna Dewan Tatum

Wearing Monique Lhuillier Spring '16.

Jessica Biel

Wearing a Monse dress and Lorraine Schwartz jewels.

Ashley Benson

Wearing a Leanne Marshall dress, Jerome Crosseau shoes, and Neil Lane jewels.

Rosie Hungtington-Whiteley

Wearing Dior.