February 28, 2017 Jo Blankenburg "The Promise" - Official Trailer February 28, 2017 Jo Blankenburg Check out Jo’s piece “Renascence” from his album “Kaleidoscope” in this beautiful trailer for “The Promise”, starring Christian Bale and Oscar Isaac. Kaleidoscope by Jo Blankenburg Click HERE to buy "Kaleidoscope" Jo Blankenburg