Greensky Bluegrass set to play The Amp Aug. 14-15

Greensky Bluegrass set to play The Amp Aug. 14-15

Greensky Bluegrass’  “XXV,” released Oct. 31, features a baker’s dozen of the band’s favorite songs — along with 10 musical pals — in honor of Greensky’s 25 years together. Collaborators include Sam Bush, Lindsay Lou, Billy Strings, Holly Bowling, Nathaniel Rateliff, Jennifer Hartswick, Natalie Cressman, Jason Hann, Aoife O’Donovon and Ivan Neville. Though the Greensky musicians didn’t want to compile a greatest hits album, they did want to mark…