It's the age-old question that has stumped man since the beginning of time: What does Ryan Lewis do?
To finally get to the bottom of this, "The Tonight Show" sent Lewis himself out on the streets of New York without a disguise or anything to ask fans point blank what they knew about Ryan Lewis. And as it turns out, not even Macklemore knows the truth.
"The Tonight Show Starring Jimmy Fallon" airs weeknights at 11:35 p.m. ET on NBC.