Barack Obama Ft Various Artists - Yes We Can -Barack Obama, Will I Am, Scarlett Johansson, John Legend, Kate Walsh, Aisha Tyler, Harold Perrineau, Enrique Murciano, Eric Balfour, Nicole Scherzinger, Shoshannah Stern, Amaury Nolasco, Nick Canon, Tatyana Ali, Hill Harper, Herbie Hancock, Kareem...