Lenny Kravitz, Michael Franti & Spearhead, Colbie Caillat and Matt Nathanson will top the A-list roster headlining the next edition of "Live in the Vineyard," the exclusive Napa Valley live music showcase presented by Aloft Hotels. Matthew Morrison and Grace Potter & The Nocturnals will also be among the artists performing intimate, acoustic sets in vineyards throughout Napa. 

