A mustache is a strip of facial hair that grows above the upper lip. It can come in various styles, from thin and neatly trimmed to thick and bushy. Many people choose to grow a mustache as a way to express their personality or to follow a trend. Some famous mustaches belong to celebrities like Tom Selleck and Freddie Mercury, who are known for their iconic facial hair. Mustaches have been popular throughout history and are often associated with different cultures and time periods. In some places, a mustache can symbolize masculinity or maturity. Today, mustaches are celebrated during events like Movember, where men grow facial hair to raise awareness for men's health issues.