Give us some space, Olsens!

Stéphanie & Caroline de Monaco

Berry & Marisa Berenson

Joan & Jackie Collins

Vanessa & Lynn Redgrave

Joan Fontaine & Olivia de Havilland

Eva, Zsa Zsa & Magda Gabor

Dorothy & Lillian Gish

Mia & Ena Begović

Meg & Jennifer Tilly

Nancy & Ann Wilson

Carnie & Wendy Wilson

Vicki & Debbi Peterson

Kelley & Kim Deal

Norah Jones & Anoushka Shankar

Encarna & Toñi Salazar

Melanie & Kim Appleby

Sister Sledge

The Pointer Sisters

Fendi sisters

Carla Bruni & Valeria Bruni-Tedeschi