The London born actress and her 14-year-old daughter Lily were pictured in their smartest attire at The Pink Party 2013 on Sunday (20 October), which was hosted by Anne Hathaway and held in Santa Monica, California.
Showing off her fabulous figure, Kate wore a bright red wrap dress by Donna Karan that clung to her in all the right places and featured a knee-high split at the front.
She teamed the frock with a pair of black and gold heels and sun kissed make-up, while styling her brown hair in a cute up 'do.
Lily - whose father is actor Michael Sheen - wore a gold dress with a bustier top and detailing around the waist.
She accessorised with matching metallic shoes and a metallic clutch bag and tied her hair up into a slick top knot.
What a little fashionista!
Sunday evening proved to be a real family affair, since Kate was also joined at the bash by her husband Len Wiseman, who she married in California in 2004.
Len, 40, looked dapper in a black suit and unbuttoned shirt and stood proudly next to his actress wife and his stylish stepdaughter.
What do you think of Lily and Kate's outfits? Let us know below, as the best comment each week wins £50!