This promotion begins on February 1. Pepsi is randomly printing 100 million winning codes in 20-ounce and one-litre bottles of Pepsi, Diet Pepsi and Sierra Mist. The winning codes will be redeemable for a free song from the iTunes Music Store.”
Macworld UK: SuperBowl kickoff for iTunes/Pepsi offer
“In October, Apple and Pepsi-Cola North America announced they would give away 100 million free songs to Mac and Windows users from the iTunes Music Store.