This is a hard one.?

I turn polar bears white

and I will make you cry.

I make guys have to pee

and girls comb their hair.

I make celebrities look stupid

and normal people look like celebrities.

I turn pancakes brown

and make your champane bubble.

If you sqeeze me, I'll pop.

If you look at me, you'll pop.

This is a hard one.?

IF I SEE THIS AGAIN.... *goes off*

This is a hard one.?

sounds like me

This is a hard one.?

You don't have the last part of the question: Do you know what I am?

The answer is NO

Unless the riddle is different?

This is a hard one.?

Time.