This year's Oscars will be held without an official host – for the first time in 30 years.
The leader of ABC Entertainment, who runs the Academy Awards ceremony, said it would instead highlight celebrities presenting trophies.
Reports had suggested that the television spread struggled to fill the role – one of the toughest in the US show business.
In December, comedian Kevin Hart pulled out the ceremony following a controversy over old homophobic tweets.
He said he did not want to be a distraction and that he was "sorry he had hurt people".
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The Oscar host usually delivers an opening monologue as well as being responsible for many of the memorial's memorable moments of the ceremony.
In addition to the main host, the ceremony also uses a number of movie stars to present the individual statuettes.
ABC Entertainment President Karey Burke said this year's ceremony on February 24 in Los Angeles would "just have presents for Oscars".
The decision was made after Hart's withdrawal, she said.
Ms. Burke added that the "mystery" of this year's event "has been convincing," which showed the viewers were eager to see it.
A number of Oscar ceremonies have not been hosted. The last time in 1989 turned out to be very controversial, not least because of an opening number with Rob Lowe and an actress dressed as Disney's Snow White.
A group of leading Hollywood characters wrote an open letter after the ceremony calling telecast a "a shame for both the academy and the entire film industry".
Walt Disney Company also filed a lawsuit against the Academy of Motion Picture Arts and Sciences, accusing the organization of copyright infringement.
The role of anchoring the Oscar has raised problems for a number of hosts since then. Hollywood Reporter has described it as "the least wanted job in Hollywood".
The controversy about Hart's tweets and the choice not to replace him with a single host follows a difficult couple of years for the academy.
The 2017 ceremony was rocked by the so-called "Envelope Gate" scandal, where La La Land mistakenly called the best picture instead of the actual winner Moonlight.
Plans to introduce a popular movie prize category were hailed last year after extensive criticism.
The academy has also been stacked by the #OscarsSoWhite campaign, which was requested by the all-white line-ups in the four categories to perform in 2015 and 2016.
The art of hosting the Oscar
The Oscar host's role traditionally involves a series of booklets that best suit them with a stand-in comedy background.
The evening usually begins with a brilliant music track, followed by a monologue who pops gentle fun on the total nominees.
When the monologue is over, the host role is to introduce the various awards and comic strips and smooth things when things go wrong.
Billy Crystal, who hosted the nine-time ceremony between 1990 and 2012, proved highly skilled at this, as he showed in 1992, when he introduced veteran producer Hal Roach from the scene.
"It was his 100th birthday," recalls Crystal in 2013. "He shouldn't talk, just wave. But he began to talk and stick to the seat in front of him.
"You could hardly hear him. It went over and over again. You could feel people restless.
"I hit a line and just looked at the audience and said," It's only fitting, he got his start in silent movies! "
"For me, I could look at one little moment and say," I was ok so. I was a good comedian that night. ""
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