Mmkay, listen here. There were 5 answers I would've accepted: Air, Light, Water, No (This will be explained.) and time.
Overall, the best was time.
I turn polar bears white - They are born a yellowish and their coat pures as they get older.
and I will make you cry. - It happens. A lot. It just takes the right time.
I make guys have to pee - I has to come out eventually. xD
and girls comb their hair. - From time to time, or it frizzes.
I make celebrities look stupid - They all do sometime. xD
and normal people look like celebrities. - It happens to normal people.
I turn pancakes brown - Indeed!~
and make your champane bubble. - It does. Beginning, kekek.
If you squeeze me, I'll pop. - Referring to something as an issue, it will go eventually.
If you look at me, you'll pop. - If you let that issue take over your life in the time given.
Hehe, and now to explain "no".
Can you guess the answer? - Simply NO. xD
One of you can go now.~