Held in Los Angeles, the ladies were joined at the star-studded bash by Katy Perry, Kristin Davis and Alessandra Ambrosio. Katy sang for the guests at the event that featured a fashion presentation and live auction.
While Kate picked a plunging red number, complete with slashed shoulders and topped with a fierce claw necklace, Sarah kept things simple in a black strapless floor sweeper and smokey eyes.
Which gorgeous party frock will you be taking inspiration from this weekend ladies? LW