Using the Spotify app, they can then scan the code on the tray liner to call up a playlist named "FriesList" containing themed tracks (titles include "FriTops of the Moment," I'm Out of Fries" and "Someone Stole My Fries").

While listening to tunes about fries might not be everyone's idea of great music, it's a fun idea to get customers interacting with McDonald's and Spotify while in the restaurants.

“In addition to the quality of the variety of the menu options, we want consumers to enjoy the experience in McDonald's restaurants even more, whether through innovative actions or interacting to each other. We want to value individual and collective experiences,” says Pablo Acosta, creative director at Leo Burnett Colombia.

Jarrett is a reporter for Crain's sister publication Ad Age.