Featured Photos: Herbie Hancock at the Sonoma Jazz Festival - May 2008

Herbie Hancock [ tickets ] is on the verge of launching an international tour that will last through the summer.The tour supports Hancock's Grammy-winning album, "River: The Joni Letters."Hancock will be joined on the tour by songstress Sonya Kitchell [ tickets ], bassist Dave Holland, drummer Vinnie Colaiuta, guitarist Lionel Loueke and vocalist Amy Keys.LiveDaily's Richard Tafoya caught an early one-off gig with bassist Marcus Miller [ tickets ] handling the low end.