Fish-shay! Fish-shay!*

McDonald's Filet-o-Fish, that tender puck of wild-caught Alaskan pollock, will soon have a little brother or sister.

It's name is Fish McBite.

The Oak Brook-based chain announced Wednesday the launch of the little fish, bite-sized pieces of that same luscious pollock found in the venerable Filet. This may surprise some (like this loyal Filet fan) but for the last decade, McDonald's has been committed to sustainable fishing. McDonald's is one of the largest single fish buyers in the U.S. and their fish products will soon carry an "ecolabel" form the Marine Stewardship Council, which certifies the fisheries working with McDonald's.

While the Fish McBites aren't yet available in restaurants, McDonald's is attempting to build the hype by asking fans to submit music videos for its crazy fish jingle. Listen here.

You might not be lovin' it, but you won't forget it. Fish-shay fish-shay!

* Actual lyrics from the Fish McBites theme song.