Twitter's new 'X' logo starts appearing on some apps day after Musk announced change

The branding transformation for Twitter to an "X" from a blue bird started Monday when the "X" started appearing at the top of the desktop version of Twitter.

The changeover began on day after owner Elon Musk made the announcement Sunday when he unveiled the new logo and "bid adieu" to the old one. 

The logo change is only the latest move Musk has made since be bought the social media platform for $44 billion last year.

Though the "X' atop desktop app Monday bird was still dominant across the smartphone app, according to the Associated Press.

At the Big Tech firm's San Francisco headquarters Monday, workers began removing the iconic bird and logo.