PepsiCo is rebranding Sierra Mist, its lemon-lime soda, as “Sierra Mist Natural.” In a dazzling display of making old look new, the soft drink will henceforth (until further notice) contain neither preservatives, artificial flavors nor caffeine. On the positive side, it will contain real sugar.

Here is the new slogan, from agency Goodby, Silverstein & Partners: The soda nature would drink if nature drank soda. 
 
For us marketers, the idea of “the impossible that would be possible if it were possible” opens up all kinds of, well, possibilities. For Neosporin: The ointment bacteria would like if bacteria liked being annihilated. For Cheerios: The cereal you could use for a life preserver if you were ant-sized and happened to be drowning in a bowl of milk. For Yanni: The music people with taste would listen to if they had no taste.

—Steve Cuno