Amazon made its pitch to advertisers at their annual upfront presentation in New York on Wednesday, with the TV arm of the e-commerce giant packing in the star power once again. Like the great Steve Aoki last year , Diplo got the crowd warmed up with a rousing DJ set that actually got advertisers on their feet. Certainly no small feat. Diplo was followed by a performance from Kacey Musgraves, who played her new song “Dry Spell” before launching into her hit song “Butterflies.” Popular on Variety But this is the upfronts after all, so all that music was followed by a pitch from Tanner Elton, Amazon’s vice president of ad sales. A tough act to follow, but it turns out the next presenter — Oprah Winfrey — was up for the challenge. “I came to television…and then somewhere around 1989 I realized that I could use television and not just be used by it because I believed that showing up honestly as myself, my authentic self, could make someone at home feel like they mattered,” Winfrey said.…