Sorry, random picture.

I know the lyrics and everything. There will be no rap.

OMG US AN UK AN LADY RANICORN KOREA!!XD

Sing it if you want, there no harm to, and besides atleast your brave enough to sing that or sing anything infront of your school, most people wont do that. I think you should
I sing this song out loud random in class every friday, at lunch or when my teachers out side in the hall way talking and the class is fooling around :p Haha good times xD

You're gonna get yourself killed if you even mention that song at your school.

How do you know?
Actually, most people at my school sing it every Friday out loud in the hallways.

Without the Autotune you'll be fine
I love the song now Friday it's friday gotta get down on Friday !!!:)

And we sing it in speech class :)

If ya want :)

You can probably sing it so much better then Rebbecca.

There's no harm.

Omg! Hetalia!
Oh yeah, sure why not? Still, Hetalia! xD

Only if you want to commit total social suicide.

Hey... that picture reminds of Adventure Time xD The people look the same...

Yah, you could... but I would advise just changing some of the lyrics... seriously. -_-