Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: You wait half a lifetime to see the Terminator, and then two come along at once. Standing on the top step of the podium was the indestructible human-looking phenomenon of legend, and next to him stood Arnold Schwarzenegger. Lewis Hamilton, of course, was the second terminator, the crushing victor of the Australian Grand Prix that gave him the perfect start in his attempt to become the first British driver to successfully defend the Formula One world championship. He has hung about with stars of the screen, fashion and music through a winter of a paparazzo’s dream, but here he was after 58 laps he had rendered as interesting as counting sheep, the supreme driver of the moment.Lewis Hamilton dominated the first race of the campaign to open up his championship defence with a winNico Rosberg completed a Mercedes one-two, but the German was no match for his team-mateSebastian Vettel secured the final podium spot on his Ferrari debut with Felipe Massa 4th for WilliamsJenson Button finished 11th and last after nursing his McLaren home... only 15 cars started in Melbourne 
 Question:_ conducted the podium interview, which caught Hamilton off guard as he said: 'Hey man!.

Arnold Schwarzenegger