1. The first step is to open Kuaishou on our mobile phone and click on the video shooting icon, as shown in the figure below:

2. The second step is to go in and shoot the video for 30 seconds seconds, click Next after the shooting is completed

3. You can select the soundtrack, as shown in the figure below:

4. After clicking on the soundtrack, select local, as shown in the figure below:

5. Here you can choose the entire piece of music as the soundtrack for the video

6. After editing, publish the video, as shown in the figure below: