Every few months, the women of Girl Crisis, an indefinite group of Brooklyn musicians whose regular participants include members of bands like Au Revoir Simone, Chairlift, Acrylics, and Class Actress, meet up for an a cappella-based cover tune. Their unpredictable song choices, Bek Andersen’s lo-fi cinematography, and a remarkable focus on fresh arrangements always makes for a unique experience — particularly on last year’s haunting take on Nirvana’s “Come As You Are.” Enjoy their latest clip, a cover of Black Sabbath classic “Paranoid” (via Stereogum), above. And stick around for the welcome touch of synthesizer in the coda.