Question: What was the name of a large inhabited island in Hawai'i that is 69.5 sqmi and was also part of the name of a Hawaiian musical group formed in 1976 before they dropped it?
Sentence (from "Niihau"): The United States Census Bureau defines Niʻ ihau and the neighboring island and State Seabird Sanctuary of Lehua as Census Tract 410 of Kauai County, Hawaii.
Relevant evidence: No