Related Clues:

• Enrolls
• Starts to make a scene?
• Enlists
• Comes onstage
• Goes onstage
• Responds to a cue, in a way
• Goes on stage
• Goes from the wings to the stage
• Walks onstage
• Inscribes, e.g.
• Walks on stage
• Keyboards, maybe
• Partner of breaks
• Signs up for, as a contest
• Infiltrates, say