Demi Moore, 49, and Ashton Kutcher, 34,who often used the micro-blogging site to post pictures of themselves and proclaim their love for one another, announced the end of their marriage in November.
In April, Demi Moore asked her followers on the site for suggestions for a new Twitter handle.
TV personality Piers Morgan suggested: “How about (at)mrsmorgan?”
Demi Moore said she would “have to get clever” because so many names on the popular site have already been claimed.
The actress wrote yesterday: “So hard finding a name that was fun somewhat playful and available. So for now it will be @justdemi It could grow on me!”
Demi Moore also thanked fans for helping her find a new name.
“Thanks everyone for your help in finding my new name!” she wrote.
The star has nearly 5 million followers on Twitter.
Demi Moore announced her intention to divorce from Ashton Kutcher last November – although proceedings are yet to be executed by either party.
It followed claims Ashton Kutcher had cheated on her with partygirl Sara Leal during a seedy night in San Diego.
Demi Moore checked out of Utah’s Cirque Lodge in March, where she was allegedly treated for eating disorder issues, exhaustion and substance abuse.
Last month the actress returned to Twitter after a spell away from the social networking site she once so regularly frequented.
Demi Moore uploaded a bizarre picture of herself from an elevated angle with the caption: “Testing….”
She was seen lying on her bed with her shoes on and the snap shows her glasses, nose and chin and her legs.
Meanwhile her estranged husband Ashton Kutcher has been linked to his former That ’70s Show co-star Mila Kunis.
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