Well being evil can be tedious. So Aizen came up with his own theatrics program out of boredom. He makes everyone watch everyday. Today he decided to Crank Dat.
Tousen is thinking that this is injustice..and Gin is thinking..err. Even I don't know what he's thinking. Maybe he likes it..?
Origin:
This is a really bad joke.
When Aizen took off his glasses, he suddenly turned into a bishounen. O.o Aizen has Clark Kent-Superman syndrome.
Then Soulja boy came out with Crank Dat.
So add two and two together and you get this...