Elvis Presley accent apparently still lingered in his voice — two years after playing the late musician. To get rid of it, the 32-year-old had to hire a dialect coach to phase out his Tennessee twang in order to prepare for the Apple TV+ miniseries “Masters of the Air.”Butler played the King of Rock ’n’ Roll in Baz Luhrmann’s 2022 musical biopic “Elvis,” a role that earned him an Oscar nomination.In “Masters of the Air,” he plays a WWII pilot.The “Once Upon a Time … in Hollywood” star appeared on “The Late Show with Stephen Colbert,” where he noted that he filmed the TV show just a week after wrapping “Elvis.” “It was a lot,” he said of the quick turnaround time on Wednesday.Butler continued: “I was just trying to remember who I was, I was trying to remember what I liked to do.