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: "Were both Dave Pirner and Aaron Pauley lead vocalists at some point in their music careers?" whose answer is yes.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Dave Pirner lead vocalist
Useful Output:

Doc 1: David Anthony Pirner is a songwriter, singer, and producer best known as the lead vocalist and frontman for Soul Asylum.
Doc 2: I caught up with lead singer Dave Pirner immediately after a jam packed show at San Francisco's Independent for a talk about the new LP, his lengthy career in
Doc 3: Dave Pirner's songwriting sessions turned into the album “Grave Dancer's Union,” with a string of hits like “Black Gold.
Doc 4: Singer-guitarist Dave Pirner says about “Runaway Train,” the 1992 lush rock ballad that briefly turned his cult-favorite alternative punk band, Soul Asylum,
Doc 5: Happy 61st Birthday DAVE PIRNER April 16, 1964 Dave is the lead vocalist and frontman of Soul Asylum Born in Green Bay, Wisconsin, but raised