Justin Bieber, Kim Kardashian, Ant and Dec and many more celebrities are no longer Twitter verified after the site removed the ticks that verify their identity.
The website confirmed that the legacy verified checkmarks would be removed from the platform on April 20.
The main way people can get their blue ticks is to sign up for Twitter Blue, which costs over £100 a year in the UK.
Stars who have lost their blue ticks, and have yet to sign up for Twitter Blue, include Victoria Beckham, Cristiano Ronaldo, Jay-Z, Prince William and Princess Kate.
Ricky Gervais, Mason Mount, Naomi Campbell, Cheryl Tweedy, Lady Gaga, Piers Morgan and Harry Styles are some of the others who are no longer verified.
Shortly after losing his verified tick, Chelsea midfielder Mason took to his page, saying: "Over the years I've thoroughly enjoyed connecting with you all on Twitter. Sadly, the platform is changing so I have decided to delete my account."
Not every person who has kept their blue ticks has paid for Twitter Blue as some legacy accounts retained their check marks if linked to a verified organisation, including Barack Obama's personal page.
If you can't see the poll, click here
The Verified Organisations feature enables bodies of "all types", including businesses, non-profit groups and government institutions, to sign up and manage their verification and to affiliate and verify any related account.
One of the most famous profiles with a blue tick because it is "subscribed to Twitter Blue' is Taylor Swift's, which has 92.5 million followers.
Twitter has always used the verification process to stop people from impersonating public figures and companies.
The platform had about 300,000 verified users under the original blue-check system, with many of these being journalists, athletes, and public figures.
Elon Musk bought the platform in late October for around $44billion and quickly made changes to the long-running platform.
He revealed he intended to take away the verification process and added Twitter Blue.
When Twitter Blue first emerged, many accounts bought the subscription in order to impersonate public figures.
Last week, Elon tweeted the date for the removal of the check marks. He stated that celebrities and public figures shouldn't be treated any differently and the removal was "more about treating everyone equally".
"Final date for removing legacy Blue checks is 4/20," he said.
* Follow Mirror Celebs on Snapchat, Instagram, Twitter and Facebook.
