A.R. Rahman's composition for 'Wanna Mash Up?' showcases his dual role as music director and vocalist, delivering the tune for the 2014 film Highway. The song appears in the movie starring Randeep Hooda and Alia Bhatt, and it is released under the T‑Series banner. While the lyricist is not listed, the track reflects Rahman's signature style within the film's soundtrack. The track has a runtime of 03:40. Listeners can enjoy this musical piece as part of the Highway album, and it is offered for download in both 320kbps and 128kbps MP3 formats.