In a breathtaking and unexpected moment on a quiet stage, Jennifer Lopez put her hands on the piano and began to play — and then, like a “dream scene” — Beyonce stepped out and joined her for a powerful, emotional duet that mesmerized the room.
It all began on a quiet, dimly lit stage with no announcement, no fanfare. Jennifer Lopez, dressed in an elegant, flowing gown, stepped into the spotlight and gently placed her hands on a grand...