New Backbone Song Download Harrdy Sandhu, Zenith Sidhu Pagalworld. New Punjabi Song Backbone Sung By Harrdy Sandhu, Zenith Sidhu Mp3 Download Free in Best Audio Formats of 128Kbps, 192Kbps and 320Kbps. The writer of 2024 Song Backbone is Jaani and music composed by B Praak.