*Bluegrass* is a brand-new studio album that brings together a dozen Willie Nelson classics such as "On The Road Again," "Yesterday's Wine," "Still is Still Moving to Me," "Good Hearted Woman," and more recent songs performed by Willie and a band of virtuoso musicians. Despite a career spanning seven decades, during which he has explored genres across the entire musical spectrum, this is the first time he has dedicated an album to Bluegrass.