JUNNY's song "Not About You" is about moving on from a past relationship. The lyrics reference the confusion and pain that comes with trying to understand why the relationship ended, and the struggle to let go of memories. The song acknowledges that the other person may still be talking about the relationship or wishing for a reconciliation, but JUNNY asserts that he is not focused on them anymore and is moving forward with his life. The music video shows JUNNY exploring new places and experiences, symbolizing his journey of self-discovery and growth.