Yahoo! CEO Marissa Mayer announced today that entrepreneur Kathy Savitt would join the firm as chief marketing officer, starting Sep. 14.

Savitt will report to CEO Mayer and will be responsible for all marketing and branding worldwide. Savitt is a successful combination of operations and entrepreneurial, with experience of four years in Lockerz, where she was the founder and chief executive. Lockerz is a social-commerce company of 45 million users, with focus on teenagers.

Savitt has always been successful in her carrer, she raised about $75 million in venture capital for Lockerz. Along with being CMO of Yahoo!, she will also stay the chairman of the board of Lockerz and will make a large financial investment.

Before finding Lockerz, she was the CMO of clothing retailer American Eagle and a VP of strategic communications at Amazon.

In the release, Mayer credited the new hire for her extensive experience in “building and refining well-loved consumer brands.

Savitt also seemed to be happy. In a statement she said, “I believe passionately in Yahoo’s ability to inspire and delight users, partners, and advertisers around the world and am excited to join Marissa in defining Yahoo’s next chapter.”