original question: How many singers performed the songs of sequels of [The Little Mermaid II: Return to the Sea]?
answer: 2
answer type: Film song performer.
auxiliary information: The Little Mermaid II: Return to the Sea is a 2000 Disney animated feature film and direct-to-video sequel to the 1989 animated film The Little Mermaid. Directed by Jim Kammerud and Brian Smith, the story takes place over a decade after the original film, and focuses on Ariel and Eric's daughter Melody, a human princess who longs to swim in the ocean despite her parents' law that the sea is forbidden to her. This sequel stars the voices of Jodi Benson as Ariel, Tara Strong as Melody and Pat Carroll as Morgana, the film's new villain. It is the last film in the chronology of Walt Disney's version of The Little Mermaid. It's followed by a prequel, The Little Mermaid: Ariel's Beginning, a 2008 direct-to-video animated feature.
What number of singers performed the songs in the Little Mermaid sequel,  [The Little Mermaid II: Return to the Sea]?