Last month, Apple shared a charming iPhone 6s ad starring well-known Sesame Street character Cookie Monster, who used the iPhone 6s and the always-on "Hey Siri" feature as a cookie-baking aid.

The spot, which garnered more than 8 million views on YouTube, is one of the most popular ads in Apple's recent history, which is likely why the company today released a followup "Behind the Scenes" video depicting a humorous second look at Cookie Monster as he shoots the ad.

In the ad, we see some before and after shots, showing more footage of Cookie Monster waiting for his cookies. Cookie Monster asks over and over again when his cookies will be ready, and has a cute conversation with Siri where he offers her a cookie when they're done. The video continues on with the ding of the oven and Cookie Monster's excitement over the finished cookies, ending with Siri wishing Cookie Monster good night.

The two ads starring Cookie Monster are two in a series of iPhone 6s ads that have starred various well-known celebrities using different iPhone 6s features. Previous ads have focused on everything from Live Photos to 3D Touch and have starred Jamie Foxx Jon Favreau , and Stephen Curry