Here's a video of Tim Cook playing a GarageBand duet with a famous Taiwanese pop star

Apple CEO Tim Cook is on a tour of Asia this week.

In addition to taking $1 billion taxi rides, he's promoting a new change to the GarageBand music app.

GarageBand was updated Monday with a bunch of Chinese instruments and local Chinese languages.

Here's a video of Cook doing a demo of the new app with pop star JJ Lin. It's adorkable.