I would say there was a Group of about 100.
Group
1. any collection or assemblage of persons or things; cluster; aggregation: a group of protesters; a remarkable group of paintings.
2. a number of persons or things ranged or considered together as being related in some way.
Crowd
1. a large number of persons gathered closely together; throng: a crowd of angry people.
2. any large number of persons.
3. any group or set of persons with something in common: The restaurant attracts a theater crowd.
4. audience; attendance: Opening night drew a good crowd.
5. the common people; the masses: He feels superior to the crowd.
6. a large number of things gathered or considered together.
7. Sociology. a temporary gathering of people responding to common stimuli and engaged in any of various forms of collective behavior.
No Band No cheer leaders no dancers.