Elon Musk's Twitter antics continue with 'Titter' sign change and Dogecoin frenzy.

Elon Musk changed the Twitter sign on the company's San Francisco headquarters to read 'Titter' by painting over the "W" in white to blend into the background color. Musk had previously joked about renaming Twitter to 'Titter' and had even created a Twitter poll about it. He apologized for doubting the attack on Paul Pelosi in a tweet last October. Since taking control of Twitter in October, Musk has faced controversies ranging from massive layoffs to allegations of spreading misinformation and hate speech.