Can you demonstrate how to control your breath while singing to prevent a yawn from affecting your performance?

To control your breath while singing and prevent a yawn from affecting your performance, focus on breathing deeply from your diaphragm, rather than shallowly from your chest. Engage your core muscles to support your breath and maintain good posture. Stay relaxed and keep your throat open to avoid tension. Practice breathing exercises and warm-ups to improve breath control and prevent yawning during singing.