PS: What three beauty products could you not live without?
KS: I honestly wear eyeliner, black mascara, and ChapStick. I mean dry shampoo is sometimes godsend.
PS: Favorite brands?
KS: I typically use stuff that's given to me. Like my makeup artists both have lines, which are great, and I use their eyeliners all the time. One of my favorite ones is from Topshop. It's just great. It lasts and works really well. For dry shampoo, I like Bumble & Bumble Pret-à-Powder ($26), like the loose powder, not the spray. I like the powder, because I feel like I look like I'm going gray when I use the spray.
PS: Do you wash your hair often? Dry shampoo junkies often don't.
KS: Every couple of days but definitely not every day. It's really not good for your hair to wash it every day. I try to not do that, because my hair gets dry really easily. And I work every day, so when we treat it, I have to be nice to it . . . and wow, this was a serious beauty interview [laughs]!