With a new profile picture to match and showing off his recently shaven head, Zayn changed his Twitter name to 'zaynmalik' after removing 'zaynmalik1D'.
Zayn posted just one cyrptic tweet since making the changes, during which he said: "Is speech an extension to our thoughts or an image that we like to create x."
Loyal Directioners began to trend the following hashtag: #YouWillAlwaysBeZaynMalik1D.
Last month, Zayn sensationally quit One Direction after five years in the band.
In a statement, he explained: "My life with One Direction has been more than I could ever have imagined. But, after five years, I feel like it is now the right time for me to leave the band. I'd like to apologise to the fans if I've let anyone down, but I have to do what feels right in my heart."
Zayn continued: "I am leaving because I want to be a normal 22-year-old who is able to relax and have some private time out of the spotlight. I know I have four friends for life in Louis, Liam, Harry and Niall. I know they will continue to be the best band in the world."
Zayn's bandmates - Harry Styles, Niall Horan, Liam Payne and Louis Tomlinson - said they were "sad" to see him go, but "respect" his decision to leave.
Following his exit, it has been widely rumoured that Zayn will go on to release solo material after working with close friend and producer Naughty Boy. Recently, Zayn has also been tipped to make his acting debut in a film after being in talks with Bend It Like Beckham director Gurinder Chadha.
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