Chicago may be known as the Second City, but when it comes to mustaches, the Windy City is tops.

The St. Louis-based American Mustache Institute on Wednesday proclaimed Chicago the most "mustache-friendly" city in America. For the honor, Chicago will host the institute's annual 'Stache Bash charitable benefit on Oct. 28.

The tongue-in-cheek institute interviewed 200 "mustached Americans" in 100 cities to determine the most mustache-friendly locale. The institute's chairman, Aaron Perlut, says the heritage of retired Chicago Bears players who continue to wear mustaches helped set Chicago apart.

Houston was second to Chicago, followed by Pittsburgh, Oklahoma City, and Detroit.

The 'Stache Bash event will be at Joe's Bar in Chicago and will help raise awareness and funds for cancers affecting men.