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On November 11, 1979, Robin Williams joined the Denver Broncos cheerleading squad for a live game at Mile High Stadium, performing in front of over 70,000 fans.
The Broncos achieved a resounding 45-10 victory over the New England Patriots. Robin, dressed as his iconic character Mork from Ork from the TV show “Mork and Mindy,” wore white knee-high cowboy boots, a sequined mini skirt and top, an orange scarf, and gloves. This memorable appearance made Robin Williams the NFL’s first male cheerleader.