It's basically colored/flavored sugar water. Here is a common commercial:
http://www.youtube.com/watch?v=Ar6xC8KM-jk
This is the type of commercial that everyone makes jokes about.
http://www.youtube.com/watch?v=Ar6xC8KM-jk
This is the type of commercial that everyone makes jokes about.
![[Image: SigBarSping_zpscd7e35e1.png]](https://images.weserv.nl/?url=i169.photobucket.com%2Falbums%2Fu224%2FUchiha_Kina%2FTags%2FSigBarSping_zpscd7e35e1.png)