opening act
nounUK /ˈəʊpənɪŋ ækt/
US /ˈoʊpənɪŋ ækt/
The first performer who comes on stage before the main show.
The opening act played three songs before the famous band came out.
OTHER MEANINGS
2. The first part of a play or performance.
The opening act of the play takes place in a small village.
3. The first step or event in a series of actions.
Her speech was just the opening act of the long ceremony.
4. A person or group that begins a show to get the crowd ready.
They hired a local band as the opening act for the festival.