Sexy Stars: Kate Bosworth gets risky with lingerie and Kelly Ripa steps out in sexy velvet look

Black was the color of the week!

Many stars stepped out wearing the dark hue in various some totally head-turning styles.

Kelly Ripa enjoyed a night out in a velvet ensemble that hugged her tiny frame.

Gene Simmons' daughter, Sophie, flashed her toned pins in a sexy leather skirt, while Katharine McPhee opted for a jacket of the same material.

Kate Bosworth decided to go for a more upbeat style -- opting for a floral frock that gave view to some sexy black lingerie underneath!

Check out all the sexy looks from the week in the slideshow above.