Austin Butler is finally getting to the bottom of the internet’s obsession with his “Elvis voice.” Over the weekend, ET spoke with the 30-year-old actor, who plays the King of Rock and Roll in the upcoming Baz Luhrmann-biopic, and he shared why he can’t shake the voice. “At this point, I keep asking people, ‘Is this my voice?’ because this feels like my real … it’s one of those things where certain things trigger it and other times as well it’s, I don’t know,” Butler told ET’s Nischelle Turner.