Austin Butler says he's 'honored' to be playing Elvis as he channels the king on the red carpet (Exclusive)

Austin Butler is already exuding the iconic charisma of The King.

Just days after it was revealed that the 27-year-old actor had been cast to play Elvis Presley in an upcoming biopic from director Baz Luhrmann, Butler donned a black-on-black ensemble that gave everyone serious Elvis vibes.

The young star's lady love, Vanessa Hudgens, took to Instagram on Monday -- ahead of the pair's appearance at the red carpet premiere of Once Upon a Time In Hollywood -- to share a pic of herself and her handsome boyfriend all decked out for the star-studded affair.

"And we’re OFF!!!! To the @onceinhollywood premiere with my man of the hour @austinbutler," Hudgens captioned the pic. 

With his partially-unbuttoned black dress shirt, black suit jacket, crisp, pleated black trousers and retro-swoosh in his jet-black hair, the young star was the spitting image of the late pop-rock icon.

ET's Keltie Knight spoke with Butler at the premiere in Hollywood, and he opened up about how excited he is to play the music icon.

"I am just profoundly honored that Baz has invited me on this journey with him," Butler marveled. "It's an extraordinary privilege. And I just feel so blessed to be working with such singular directors like him and Quentin Tarantino."

When news of Butler's casting broke, Luhrmann released a statement explaining how he decided on the former Nickelodeon star for the high-profile leading role.

"I knew I couldn't make this film if the casting wasn't absolutely right, and we searched thoroughly for an actor with the ability to evoke the singular natural movement and vocal qualities of this peerless star, but also the inner vulnerability of the artist," Luhrmann said in a statement. "Throughout the casting process, it was an honor for me to encounter such a vast array of talent."

"I had heard about Austin Butler from his stand-out role opposite Denzel Washington in The Iceman Cometh on Broadway, and through a journey of extensive screen testing and music and performance workshops, I knew unequivocally that I had found someone who could embody the spirit of one of the world’s most iconic musical figures," the statement added.

For those who want to see Butler on the big screen before the Presley biopic drops, you can catch him star alongside Brad Pitt and Leonardo DiCaprio in Once Upon a Time in Hollywood, which hits theaters July 26.

ET exclusively spoke with Butler about the film last month, where he revealed the acting advice he received from Pitt.

"It was truly a dream come true," he said of working with the actor. "One thing Brad said was 'to play the long game.' I love that, just the idea of really choosing quality over quantity." Check out the video below to hear more.

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Once Upon a Time in Hollywood premiere
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Once Upon a Time in Hollywood premiere
HOLLYWOOD, CALIFORNIA - JULY 22: Leonardo DiCaprio arrives at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Brad Pitt arrives at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Margot Robbie attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Margot Robbie attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: (L-R) Brad Pitt, Margot Robbie and Leonardo DiCaprio arrive at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Pierce Brosnan and Dylan Brosnan attends Sony Pictures' "Once Upon A Time...In Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Pierce Brosnan and Dylan Brosnan attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Dylan Brosnan attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)

HOLLYWOOD, CALIFORNIA - JULY 22: Elsa Pataky and Chris Hemsworth attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California.

Elsa wore a Ba&sh dress, currently on sale for 50% off!

(Photo by Axelle/Bauer-Griffin/FilmMagic)

HOLLYWOOD, CALIFORNIA - JULY 22: Julia Butter (L) and Leonardo DiCaprio arrive at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Quentin Tarantino arrives at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Snoop Dogg attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Britney Spears and Sam Asghari attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Robert Carradine arrives at the Sony Pictures' "Once Upon A Time...In Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CALIFORNIA - JULY 22: Timothy Olyphant attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Joe Manganiello and Sofia Vergara attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Sofia Vergara attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Luke Hemsworth and Samantha Hemsworth attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: (L-R) Scout Larue Willis, Tallulah Belle Willis and Rumer Willis arrive at the premiere of Sony Pictures' "One Upon A Time...In Hollywood" at the Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Vanessa Hudgens and Austin Butler attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: John Stamos and Caitlin McHugh attend Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Adriana Lima attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Andy Serkis attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Maya Hawke attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Rebecca Gayheart attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Topher Grace attends The Los Angeles Premiere Of "Once Upon A Time In Hollywood" at TCL Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by David Crotty/Patrick McMullan via Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: April Love Geary and Robin Thicke attend The Los Angeles Premiere Of "Once Upon A Time In Hollywood" at TCL Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by David Crotty/Patrick McMullan via Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Rebecca Rittenhouse attends The Los Angeles Premiere Of "Once Upon A Time In Hollywood" at TCL Chinese Theatre on July 22, 2019 in Hollywood, California. (Photo by David Crotty/Patrick McMullan via Getty Images)
HOLLYWOOD, CALIFORNIA - JULY 22: Margaret Qualley attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
HOLLYWOOD, CALIFORNIA - JULY 22: Kevin Smith and Jennifer Schwalbach Smith arrives at the Sony Pictures' "Once Upon A Time...In Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CALIFORNIA - JULY 22: Travis Scott attends Sony Pictures' "Once Upon a Time ... in Hollywood" Los Angeles Premiere on July 22, 2019 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
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