Definitions:
a heading at the top of an article or page in a newspaper or magazine

denoting a particularly notable or important piece of news

denoting or relating to the star performer or group at a concert, typically appearing as the last act on the bill

denoting or relating to a figure for unemployment based on the unadjusted total number of people out of work, as a percentage of the population

provide with a headline

appear as the star performer at (a concert)