Elon Musk has named Linda Yaccarino as Twitter’s new CEO, ending speculation about who the billionaire would appoint as his successor at the social-media platform.

Yaccarino just resigned from her longtime job as NBC Universal’s head of advertising on Friday, May 12 but has yet to publicly comment.

“I am excited to welcome Linda Yaccarino as the new CEO of Twitter!” Musk wrote on Twitter Friday.

“@LindaYacc will focus primarily on business operations, while I focus on product design & new technology. Looking forward to working with Linda to transform this platform into X, the everything app.” he added.