Macario Martínez, a former street sweeper from Mexico City, appeared on NPR's celebrated "Tiny Desk Concert" series.
Martínez, a 23-year-old aspiring musician, gained viral fame in February with his music video "Sueña Lindo, Corazón" ("Sweet dreams, sweetheart"), recorded in his work uniform after his shift.
Life demands a lot, and I'm just a street sweeper who wants you to hear his music
Author's summary: Macario Martínez shines on NPR's Tiny Desk Concert.