Rami Malek stops by “The Ellen DeGeneres Show” on Thursday to talk about how he transformed into Freddie Mercury for the upcoming Queen biopic “Bohemian Rhapsody”.

The “Mr. Robot” star took his role as the iconic Queen frontman very seriously, explaining to DeGeneres that he flew to London to take singing and piano lessons and meet with choreographers.

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“I realized, ‘oh, I don’t need a choreographer’ because [Mercury] wasn’t choreographed,” Malek says. “He was spontaneous in every moment, every time he got on stage you never knew what he was gonna do, and I wanted to have that ability when I was out there.”

Instead, the 37-year-old actor reveals he worked with a movement coach to help master the late singer’s mannerisms and body language. He also tells DeGeneres that he sings throughout the movie, but that other voices are mixed in, including Mercury’s.

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The toughest part of the film, though, might have been wearing the false teeth.

“It was hard to sing in them, hard to talk in them, hard to kiss in them… but I appreciated them so much by the end of it, I felt naked without them,” Malek reveals. In tribute to Mercury, he ended up having the teeth gold plated to keep as a memento.

“You have a grill now,” DeGeneres remarks.

Elsewhere on the show, Malek talks about his summer trip to Africa, and then asks DeGeneres to take a selfie with him for his Instagram page, after the talk show host was offended that his only photos on there were with “Late Show” host Stephen Colbert.

“Bohemian Rhapsody” opens in theatres on Friday.