Likes and Your News Feed
While you may not realize, whenever you Like something on Facebook you're also subscribing to a fan page. This means that updates and advertisements from anyone or anything you've Liked—such as business, celebrities, bands, movies, and TV shows—can appear in your News Feed at any time. If you frequently like things on Facebook, your News Feed can easily become overwhelmed with advertisements rather than updates from your friends and family.To unsubscribe from any fan page that you've liked, hover the mouse over a post in your News Feed. Click the drop-down arrow that appears in the top-right corner and then select Hide all from the drop-down menu.
Hiding fan page updates from your News Feed.
Alternatively, you can simply navigate to your profile and unlike anything you no longer wish to see in your News Feed.
Unliking a page on Facebook