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St. Vincent treated "Saturday Night Live" viewers to a sample of her off-kilter brand of music this weekend. 

On the NBC show's season finale, the singer-songwriter born Annie Clark performed two songs from her self-titled album -- "Birth in Reverse" and "Digital Witness." 

Clark was backed by a three-piece band for the set, and each member joined her in some oddball choreography that included synchronized arm dancing and head snaps. 

They're set to bring the show down to Australia later this week, and will kick off a tour of Europe in June.