Twitter owner Elon Musk officially changed the company’s famous bird logo to an “X” on Monday as part of a sweeping rebrand he announced on the social media site over the weekend.

“Tweets” will also be replaced, according to Twitter’s owner Elon Musk, and posts will be called “x’s”, BBC news reported.

Musk changed his profile picture to the new logo and added “X.com” to his Twitter bio.

Musk wants to create a “super app” called “X” – his vision for a new kind of social media platform that he has been talking about creating for months.