NEW YORK - Facebook's "like" button isn't going away, but it's about to get some company.

Facebook has been testing alternatives to "like" in about a half-dozen countries. On Wednesday, the social network will start making "haha," ''angry" and three other responses available in the U.S. and the rest of the world.

In changing a core part of Facebook, the company says it tried to keep things familiar. The thumbs-up "like" button will look just as it long has, without the other choices cluttering the screen or confusing people. You have to hold that button for a second or two for the alternatives.

The rollout is expected to take a few days. You'll get the feature automatically on Web browsers, but you'll need to update your app on iPhones and Android devices.