Pianist and composer Herbie Hancock-who ranks among the most influential jazz musicians of the last hundred years-is a bouncy and jovial free spirit. At age 70, he seems as excited about his new Apple iPad as he is about his latest album, The Imagine Project (which is also available as a video). The CD finds him performing with more than a dozen musicians from all over the world-from Pink and John Legend in the U.S. to Colombia's Juanes, the Congo-based band Konono No.1 and the nomadic Saharah Desert band Tinariwen-with most of the 10 songs on the disc recorded in the guest artists' home countries. The result expresses "peace through global collaboration," Hancock explained.