Edwin "Eddie" Boison, known as Cow-Bell Man, is a stadium fixture for the New York Mets.
[1] He can be seen at nearly every home game at Citi Field, wandering around the concourses while banging a cowbell.
In 2009, he wore a batting practice jersey with the number 15, which from 2005 to 2011 was assigned to outfielder Carlos Beltrán.
[2][3] Prior to the Mets' acquisition of Beltran, Cow-Bell Man's jersey featured the number 10, worn by Endy Chavez.
As of July 2021[update], Cow-Bell Man wears a Met jersey with "COWBELLMAN" with the #40.[when?]