When Céline Dion walked onto that stage with NSYNC beside her, the audience expected a fun novelty — nothing more — but within seconds, the chemistry between them shifted the entire room. What looked like a simple crossover suddenly felt like a generational handshake, an unplanned meeting point between the queen of ‘90s power vocals and the decade’s biggest boy-band phenomenon.
When Céline Dion & NSYNC Stood Together: The Performance That Became More Than a Song On the night of October 7, 1999, at New York’s historic Radio…