The dancers exited and Mercouri sang her famous song "Never on Sunday".

Entity and relation annotations:
id: 0
type: entity
value: text: Mercouri
labels: <Person>
id: 1
type: entity
value: text: "Never on Sunday"
labels: <Work_of_art>
type: relation
to_id: 1
labels: Person:creates:Work_of_art
Person:performs:Work_of_art
from_id: 0