This is a rather silly animation of fish disco dancing in a fish tank.
It is an advert for soundbug - a pretty cool device that plugs into headphone sockets and sticks to windows, doors, desks, etc., and turns them into speakers so you can share your tunes wiothout having ot play "head twister" while trying to share 'phones.
I love the formation dancing at the end!
Funny.co.uk says: If you don't mind watching what is an online advert, it is pretty funny. And the big fish does have an English accent, too!