Pepsi and Amazon announced they would join forces in a move that is likely to become highly popular among both music fans and music labels. Starting with February 3, or Super Bowl Sunday, Pepsi will begin a promotion that will allow customers to download one free MP3 track after collection five song codes from soda bottles’ caps. The company said the promotion will include up to 5 billion bottles and that customers would have to visit a specific redemption store on Amazon’s web site for accessing music from participating labels.

Pepsi’s first promotion of giving away free music downloads took place three years ago, when the company partnered with Apple’s popular service iTunes. The 2004 Super Bowl campaign resulted in 5 million people downloading free music tracks over three months.

For the latest promotion, Pepsi and Amazon will offer a lot more tracks for free, although the actual number won’t be 1 billion, as the campaign is theoretically offering, because some people will have more or less than the required five codes. Pepsi and Amazon asked all of the major music labels to participate to their campaign, but only some of them accepted, due to Amazon’s offering labels only 40 percent per track.

However, the promotion still has big chances to be a hit, taking into account that people are craving after free MP3 tracks.