Replace only the smoky dark studio background behind the girl with…

Replace only the smoky dark studio background behind the girl with the giant festival stage from @image1: right behind her, slightly out of focus, a line of six dancers in black costumes dance a sharp synchronized routine; beyond them towering LED screens with golden and electric-blue effects, the glowing golden hexagon portal, spotlight beams sweeping, lasers, flame jets and golden confetti falling. Strong golden backlight on her hair, cool blue rim light. Remove the small Instagram logo and the @username text. Do not change the girl at all: keep her face, her hair, her clothes, her expressions, her lip movement, her hand gestures, the microphone, the camera framing and the crop exactly as in @video1.