Whitney Houston's secret romance and the star who tried to stop her from marrying Bobby Brown. Kim, Kourtney and Khloe are talking love and babies! Only we're covering it all with the Kardashian sisters. Nick Jonas gives ET his first interview about joining "The Voice." Our exclusive with Jimmy Fallon on the road in Texas. Plus, our "ET Bahamas Week" surprise guests help answer the question ? "Who let the dogs out!"