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Elon Musk said Sunday that he plans to change the logo of Twitter to an "X" from the famous blue bird, in the latest big change he has made since buying the social media platform last year, The Associated Press reported.

In a series of posts on his Twitter account, Musk said that he's looking to make the change worldwide as soon as Monday.

"And soon we shall bid adieu to the twitter brand and, gradually, all the birds," Musk wrote.

"Not sure what subtle clues gave it way, but I like the letter X," he tweeted later.

Hours later, Linda Yaccarino, appointed as Twitter CEO in May, weighed in on the move.

"It's an exceptionally rare thing -- in life or in business -- that you get a second chance to make another big impression," she wrote on her Twitter account. "Twitter made one massive impression and changed the way we communicate. Now, X will go further, transforming the global town square."

Yaccarino wrote that X would be "the future state of unlimited interactivity -- centered in audio, video, messaging, payments/banking -- creating a global marketplace for ideas, goods, services, and opportunities."

Musk has made a series of controversial changes to the platform. One of his first product moves was to launch a service granting blue checks to anyone willing to pay $8 a month, but the social media platform was quickly inundated by impostor accounts, causing Twitter to temporarily suspend the service days after its launch.

The relaunched service costs $8 a month for web users and $11 a month for users of its iPhone or Android apps.

In April, Twitter removed blue checkmarks from many high-profile users who did not pay the monthly fee to keep them.

Earlier this month, Twitter announced that its users will soon need to be verified in order to use TweetDeck, which was previously free and is widely used by businesses and news organizations.

That move came days after Musk announced that unverified accounts in the Twitter Blue program (that do not pay for a monthly subscription) will be limited to reading only 600 posts per day, compared to verified accounts which will be able to read 6,000 posts per post per day. That number was later increased.

Musk explained that the reason for the move is "to deal with large volumes of information mining, or 'scraping,' and system malfunctions."

In a later post, Musk explained that the new limitations placed on Twitter usage are meant to combat addiction to social media and encourage people to look up from their phones.

Musk's move to change Twitter's logo to an "X" also comes as Twitter faces new competition from Meta's new app, Threads, launched earlier this month.

Twitter responded by threatening legal action against Meta, accusing Mark Zuckerberg’s company of unlawfully using Twitter’s trade secrets and other intellectual property by hiring former Twitter employees to create a “copycat” app.