Given the following reasoning and answer, what was the question? This is the relevant information: Brent Stephen Smith (born January 10, 1978), is an American singer, songwriter, and musician best known as the lead vocalist of the band Shinedown.
The answer: Brent Stephen Smith
The question Passage: Brent Stephen Smith (born January 10, 1978), is an American singer, songwriter, and musician best known as the lead vocalist of the band Shinedown.

Question: Based on this passage, who is the lead singer of the band shinedown?