Oh, Now #BearStack Makes Sense

Cartoon Network has been airing a promo of sorts that shows three bears (white, brown, and Panda) accompanied by a catchy tune, stacked on each other traveling through various universes of the CN lineup and concludes with #BearStack.

While amusing, because I love the silly scenes and the art style of the bears, I didn’t quite get what they were going for. Was a new game coming? A new app? Some special summer event?