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 never going to give you up?" whose answer is Rick Astley.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who sang never gonna give you up
Useful Output:

Doc 1: Matt and Mike did a lot of work on Never Gonna Give You Up. We changed the key so Rick had to sing higher, and it worked. We mixed and mixed and mixed it.
Doc 2: Never Gonna Give You Up - Rick Astley - POP · 1987 - More By Rick Astley - Bring Back the Time (feat. Salt-N-Pepa, Rick Astley & En Vogue)
Doc 3: Rickrolling into 2024 #RickAstleyRocksNewYearsEve #iPlayer #Sounds #NeverGonnaGiveYouUp Subscribe and to the BBC
Doc 4: Rick Astley is a singer and songwriter from England, whose debut single, “Never Gonna Give You Up,” became an international smash hit.
Doc 5: Watch the Never Gonna Give You Up music video by Rick Astley on Apple Music.