Headliner (performances)

A headliner is the main act in a music, theatre, or comedy performance.

In music, the headliner often reserves sole permissions to the name of the tour.

Thus, tour names often reflect the name of the latest album or a popular song from the latest album of the headliner.

Additionally, the headliner is often the most famous or prominent act in the performance.

The main event is a similar concept in sports.