Está or es
Would it be El concierto de rock (está OR es) en el estadio ?
2 Answers
This one often gives people difficulty, as we generally consider locations to be estar, but when they refer to events, you use ser.
Reference:
https://www.thoughtco.com/using-ser-and-estar-3079808
Translating 'To Be' When Referring to Location
'Ser' Used for Events, 'Estar' for People and Things
by Gerald Erichsen
Updated May 25, 2017
¿Dónde es el concierto que vemos? Where is the concert we're seeing?
El concierto es en el estadio.
El estadio está en el barrio del Cerro.