headlining
adj. B2 Upper Intermediate US //ˈhɛdˌɫaɪnɪŋ// UK //hˈɛdlaɪnɪŋ// head·lin·ing
adj. describing the main performer or the most important act at a show or concert. It is the name you see in the largest letters on the poster.
adj. appearing as the primary or most prominent performer in a concert, festival, or theatrical production. Often used attributively to describe the main attraction of an event.
The headlining band starts their set at nine o'clock.
After years of playing small clubs, the singer finally secured a headlining spot at the summer music festival.
The headlining act delivered a two-hour performance that justified their top billing and satisfied the thousands of fans who had waited all day in the rain.
Usage
Typically used attributively before a noun like 'act', 'band', or 'performer'.