A drummer-less rock band, a jamgrass act and a rock n' roll bluegrass troupe have all been used to describe the sound of Greensky Bluegrass

The members of Greensky Bluegrass made their Red Rocks Amphitheatre headline debut on July 23, 2016. 

(Courtesy Greensky Bluegrass)

The musical quintet, which won the 2006 Telluride Bluegrass Festival band contest, released a new album last month. It's called "Shouted, Written Down & Quoted."

Mandolin player and singer Paul Hoffman lives in Denver. Singer and guitarist Dave Bruzza lives in Fort Collins. They spoke with Colorado Matters host Nathan Heffel.

Greensky Bluegrass performs at the Ogden Theater in Denver Dec. 1 - 3.

Watch Greensky Bluegrass perform at Colorado venues: