Dancing With the Stars season 34 may be continuing to shatter voting records, but it's Robert Irwin who has the internet all abuzz. While one could point to his jaw-dropping moves or that shirtless moment, it's his infectious energy and admirable vulnerability in sharing his family's story that landed him a spot in Us Weekly's Reality Star of the Year issue. "I kind of thought, 'I don't know how they're going to feel about just some random Aussie kid just coming on board.' But it was really, really amazing," Irwin, 21, exclusively tells Us of the DWTS audience's warm reception.