Frontman (noun)

1. The person who leads or represents a group or organization, especially a band or musical group.
2. The person who acts as the public face of a group or organization.

Origin:

20th century: from front (in the sense of "face of a group or organization") + man.

Examples:

1. The band's frontman was known for his energetic stage presence.
2. The company's frontman was always the one to give interviews and speeches.
3. The frontman of the band was the one who wrote most of the songs.
4. The frontman of the political party was the one who presented their platform.
5. The frontman of the organization was the one who negotiated with the government.