During the lunar new year period, Chinese people send good wishes to friends and family.

Pepsi China’s “Bring Happiness Home” campaign had a WeChat feature that let followers send their own voice recordings to the account and have them remixed into a customized Pepsi theme song to share with friends and loved ones.

WeChat has a heavy focus on audio messages as many Chinese people prefer that to texting because typing in characters is time-consuming

As a result, users could record an audio message on the Pepsi ad that would get mixed in with a soundtrack of the well-known “Bring Happiness Home” theme song which they could then share with their friends.