Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is an animated gif of a kid wearing sunglasses / shades and dancing with a saxophone in his hands. Often used as a reaction gif whenever somebody is expressing delight. I've no idea where this is from.