There are about 36 million people living in the Greater Tokyo Area. This is what happens when every single one of them tries to get on the same train at Harajuku station.
Like me, you are probably very knowledgeable about J-Pop (the Japanese pop music scene). One of the big boy bands is called 'News'.
They are very good. I can hear their concert now from my 20th floor hotel room which is next door to the Tokyo Dome where they are performing.
Several thousand fans (mostly teen girls and many who have not been in their teens for some time) were part of the crush for the train. Lots of them dressed to kill, in platform shoes.