You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who sang one voice singing in the darkness?" whose answer is Barry Manilow.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "One Voice" singing in the darkness singer
Useful Output:

Doc 1: Barry Manilow · @barrymanilow. "Just one voice, singing in the darkness All it takes is one voice Singing so they hear what's on your mind And
Doc 2: The World Choir - hosted by @FunkyVoices - joining together with countries all over the world as One Choir Performing Barry Manilow "One Voice".
Doc 3: "Just one voice, singing in the darkness": The Manilow Thread · Go to page · Mel O'Drama.
Doc 4: Barry Manilow - One Voice. One Voice Just one voice singing in the darkness. Singing so they hear what's on your mind. All it takes is one voice. And when you
Doc 5: Barry's version first appeared on his 1979 album “ONE VOICE ”. It was also included in the 1992 Box Set “THE COMPLETE COLLECTION AND THEN SOME…!