1. Open WeChat on your mobile phone, enter the main interface, click My at the bottom, and then click the video number in the discovery interface.
2. Click the avatar icon in the upper right corner of the opened interface.
3. Click the Publish New Update option in the opened interface.
4. A window will pop up, click Select from the mobile phone album.
5. Select the video you want to use, and then click the edit option on the lower left.
6. Then click the music icon at the bottom and select your favorite music.