New logo 'X' installed on Twitter headquarters in San Francisco

The new Twitter logo "X", which replaces the world-recognized blue bird, is installed on the rooftop of the company’s headquarters in San Francisco. Elon Musk who bought Twitter for 44 billion USD last October, announced last week that the logo will be changed.

Musk's connection to the letter X goes back 24 years when he founded X.com, which later was renamed PayPal despite his objections. His space exploration company is called SpaceX and the parent company of Twitter was changed to X earlier this year.