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Superstar!! is a 1999 comedy film and Saturday Night Live spin-off about a quirky, socially inept girl named Mary Katherine Gallagher. The character was created by SNL star Molly Shannon and appeared as a recurring character on SNL in numerous skits.
Superstar! she was so cool on SNL she jump out and yell I'm 50 over and over I just thought she was so funny anyone remember?