Tom Bergeron talks hosting Shark Week's "Dancing With Sharks" and the "sad" trophy. "That's the same reaction I had with the 'DWTS' trophy."

Bergeron admits that he was both skeptical and curious when the offer to host Dancing with Sharks reached him. "I had two reactions. The first one was, 'What are you smoking?' And

Tom Bergeron's hosting a new dance competition ... though the new contestants are a whole lot more dangerous than a group of celebrities -- they're some of the ocean's most dangerous predators.