What's the Kennection? #131

In his prime, what singer toured 51 weeks out of the year as the "hardest working man in show business"?

What U.S. government agency announced its "Next Giant Leap" initiative in 2014?

What is the dangerous occupation celebrated in Ernest Hemingway's book Death in the Afternoon?

In what country would you find Vereeniging, where the treaty ending the Boer War was signed?

Marlon Brando was paid $14 million for his ten-minute cameo at the start of what 1978 blockbuster?

What's the "Kennection"?