1. First, open the Kugou music player and select "Lyrics" in the upper right corner, as shown in the picture below.
2. Then, continue to select "Lyrics Background", as shown in the figure below.
3. In the background of lyrics, check "Local Photos", then open the folder where you stored the photos in the first step, and select the directory, as shown in the figure below.
4. After confirmation, you will see that the playback background has been replaced with your own photo, as shown in the picture below.