You step out on the stage into the blinding spotlights. The screams of the fans are deafening, and you can barely hear yourself think. The choreography you've practiced for hours is running on autopilot as you perform, your eyes scanning the thousands of faces staring at you. You can barely see them from here, they look like a sea of waving light sticks and signs - but you can feel the energy and adoration radiating from them.