SYDNEY, AUSTRALIA - MARCH 09: Bianca Leilani Casady of the group Cocorosie performs during day three of Playground Weekender 2008 at the Del Rio Resort on March 9, 2008 in Sydney, Australia. (Photo by Graham Denholm/Getty Images)
They've been described as a freak duo but some still love the musical styling of of the sisters that are Cocorosie. Their unique sound is only trumped by their unique -- some what disturbing style -- of the duo. Cocorosie will perform tonight at the Regency Building, 1290 Sutter St. in San Francisco at 8, and tickets are still available. But if you want to sample their music and make sure it's up to your tastes before you fork over your hard earned cash, you can head down to Amoeba Records in Berkeley for a free, live in-store performance at 2 p.m.