solve this riddle, first one, best answer?

[gavmel259]

A lit match.

 

[KHAN_360]

Tear one off and scratch my head,
What once was red is black instead.

What am I?

 

[anonymous_94]

match....i had to read it like 2 times to get it but yea

 

[FrigginMcFrigga]

It's either a match which would be my first answer...or a pimple.lol

 

[Cullen G]

You fart and scratch your head.
Meanwhile, you gaze at red construction paper you tossed into black paint.