On Tuesday, Twitter’s CEO Parag Agrawal announced that the social media platform will be appointing tech billionaire Elon Musk to the company’s board of directors. The announcement comes one day after it was revealed that Musk had bought a 9.2% stake in Twitter, thereby becoming the largest shareholder in the company with the purchase.

“I’m excited to share that we’re appointing @elonmusk to our board!” Agrawal tweeted. “Through conversations with Elon in recent weeks, it became clear to us that he would bring great value to our Board.”

“He’s both a passionate believer and intense critic of the service which is exactly what we need on @Twitter, and in the boardroom, to make us stronger in the long-term. Welcome Elon!” he added.