Baby Leon discovers he can raise his eyebrows

This video is bound to give you a good dose of laughter today, and it's guaranteed to be one of the cutest things you've ever seen.

Lucas MacEochaidh uploaded this clip of his nephew, Leon, realizing he can raise his eyebrows for the first time -- and his reaction is priceless, leaving mom doubled over in laughter.

The adorable video, posted on YouTube on June 20, already has more than 1.8 million views and counting.

We sincerely hope the camera's ready when Baby Leon learns to wink!