The Disney musical, "The Little Mermaid," made its musical debut on Broadway last night, and we celebrated backstage with the copper-haired star herself, Ariel, played by SIERRA BOGGESS. ET also talked with ROSIE O'DONNELL and KATHIE LEE GIFFORD -- who weighed in on the Spears family crisis.

"The Little Mermaid" is playing at Broadway's Lunt-Fontanne Theater in New York.