Main Act at a Concert or Show
Puzzle 10 of Fandom Easy Pack
Question is: Main Act at a Concert or Show
and the answer is: HEADLINER
Word Meaning:
HEADLINER — (music) The headlining band or performer at a concert or similar event; the best-known and first billed musician, comedian, etc., often performing as the final act of the evening.
Definitions from Wiktionary.