Tswizzlify

This extension will change all the images to Taylor Swift, while you are browsing the web. This extension works on almost any page, with almost any image. This is a great extension to prank your friends with, as the user will be completely bewildered as to why every web page is suddenly showcasing just Taylor Swift.

There is an options setting to turn it on and off.

No malintent was intentioned with this app. The only user experience modification is that images are replaced to point to images of Taylor Swift. This extension is easily turned off with it's own settings page, disabled, or removed from Chrome entirely.