fan base
[fan beys]
noun
the fans of a celebrity, team, media franchise, etc., when considered collectively: The fan base was crushed when the team moved to a different city.The studio marketed the sequels heavily to the franchise’s established fan base.
Origin of fan base
An Americanism dating back to 1975–80
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019