2. Click the+button and select the video to upload in the pop-up page.

3. On the video editing page, click the music icon in the lower right corner to enter the music library.

4. In the music library, select the music tracks saved in your personal collection.

5. Click the music track and a tab will appear at the bottom of the interface. Select Add My Music to add the music track to my music list.

6. Return to the video editing page, click the My Music button in the lower right corner, and select the newly added music track to use as video background music.