Hollywood moms strutted their stuff to promote their latest films at the Warner Bros. ShoWest Presentation in Las Vegas this past week. Our favorite look was the simple but classy grey pencil skirt and sheer silk sleeveless shirt ensemble worn by Jennifer Lopez:

Showing off one of spring’s hottest color trends was Sarah Jessica Parker in this beaded chartreuse one-shoulder dress by Lanvin:

(SATC 2 cast members: Cynthia Nixon, SJP, and Kristin Hill)

Katherine Heigl was seen in a classic LBD and Christian Louboutin mesh boots. What do you think of the boots, and are you a fan of Katherine’s new dark tresses?

SJP and J-Lo were our style inspirations for two sexy looks for spring: