Love Song to the EarthPaul McCartney,Jon Bon Jovi,Fergie,Natasha Bedingfield,Johnny Rzeznik,Kelsea Ballerini,Colbie Caillat,Q'Orianka Kilcher,Nicole Scherzinger,Sean Paul,Leona Lewis,Angelique Kidjo,Sheryl Crow,Christina Grimmie,Victoria Justice,Krewella