Because it needed to be done.
EDIT: Here are the lyrics
I AM HAJIME HINATA!
Two to the one to the one to the three,
You should know
It's wrong?!
I see!
Hold on a sec...
Because we believe
Hey you guys, don't forget about me!
Believe in our future
M E A T O N T H E B O N E
This is my answer!
LEAVE ME ALONE!
I can't back down
Damn it!
Crap
I can't decide
That was Nagito's trap
It's all coming together!
Such a weird lie
An octagon is a shape with eight sides, right?
This crime was orchestrated by you
I didn't come here to talk, I just came to bring you some food.
...So come on, eat it.
![](https://i.ytimg.com/vi/R0QG6MSiMSg/mqdefault.jpg)