Jazz Aspen Snowmass has announced additions to the main stage acts for this year’s Labor Day Festival. Mumford & Sons, Michael Franti & Spearhead and Vintage Trouble will join previously announced acts including Steve Miller Band, Sugarland, Trombone Shorty & Orleans Avenue and Kid Rock. The multi-day festival will take place from August 31-September 2.

3-Day Festival Passes are on-sale now. Single Day tickets will go on-sale this Friday, May 18 at 8AM MST. Visit the Jazz Aspen Snowmass website to purchase tickets.