Amazon UK http://www.amazon.co.uk/willpower-Will-I-Am/dp/B00BJJ7W4I/ref=sr_1_1?s=music&ie=UTF8&qid=1365173331&sr=1-1&keywords=willpower
Amazon USA http://www.amazon.com/Willpower-Will-I-Am/dp/B00BCV3HGU/ref=sr_1_1?ie=UTF8&qid=1365678156&sr=8-1&keywords=will+power+will+i+am
iTunes — Coming Soon
Source: http://will.i.am/ & Will i am’s Twitter