Kathy Savitt, the founder and CEO of the photo sharing site Lockerz, is joining Yahoo! as chief marketing officer. Savitt started Lockerz in 2009. Prior to that she was executive vice president and chief marketing officer of American Eagle Outfitters for three years.

“We are very excited to welcome Kathy to Yahoo!,” said Marissa Mayer, Yahoo!’s fifth CEO in just three years, in a statement. “Her extensive experience in building and refining well-loved consumer brands like Amazon, American Eagle Outfitters and Lockerz will be incredibly valuable as we define Yahoo!’s future.

Savitt will begin at Yahoo! on September 14.