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Bruno Mars is unleashing some funky new dance moves on fans. The star joined Mark Ronson as the musical guest on "Saturday Night Live" this weekend, where they performed their new collaboration "Uptown Funk" for the first time. 

A group of singers joined Bruno with some upbeat choreography as Ronson stood to their side on the guitar.

Bruno took a backseat for the second performance of the night, however. He stepped back in line as one of the backup singers to welcome the earlier rumored "very special surprise guest," who turned out to be rapper Mystikal. He debuted his contribution to Mark's upcoming solo album, a James Brown-inspired song called "Feel Right."

The album, called Uptown Special, is due out on January 27th.