As part of its "Perfect Harmony" platform, Coke is partnering with "American Idol" to let fans vote on which lyrics and instruments should be included in a new "Perfect Harmony" song written by Carly Rae Jepsen.
Digiday reports that each week during the activation, fans can vote on which lyrics they want to see end up in different stanzas of the song. The voting works through a Facebook integration. Once users have cast a vote, they are given access to special content like clips of the song and videos of Jepsen. By casting votes, fans also get entered for the chance to win a trip to the “American Idol” season finale performance or other Coca-Cola and “American Idol” prizes.