Question: When was the soundtrack album released that included vocals from the person who played the role of Pearl Krabs on "SpongeBob SquarePants"?  
Sentence (from "List of SpongeBob SquarePants guest stars"): Many of the ideas for the show originated in an unpublished, educational comic book titled "The Intertidal Zone", which Hillenburg created in the mid-1980s.
Relevant evidence: No