Tumblr has released a new standalone app called Cabana, where you can hang out with your friends through video chat and force them to watch cute animal videos. It's far from a being a new concept: Google already did it with YouTube party mode for Hangouts and Uptime. A simple search for "watch videos together" will bring up a lengthy list of choices, as well -- there's even an in-app option for Apple's iMessage. Still, the company says the prototype was a hit among teens aged 13 to 18 during their tests. If you're partial to Tumblr and you're looking for a virtual party app anyway, Cabana might be worth a shot.