You cannot cancel QQ music on your mobile phone. You can only turn off QQ music or quit QQ music. The specific operation steps are as follows:

The materials we need to prepare are: mobile phone, qq.

1. First, we turn on QQ Music and click the "Three" menu icon button in the upper left corner.

2. After that, we click the "Login Exit/Close" button to open the page.

3. Then we can click the "Close QQ Music or Quit QQ Music" button on this page.