Watch Farhan Akhtar's muscles in Zinda

Farah Akhtar's talent and fab abs are on full display in the first song, Zinda, of his forthcoming film Bhaag Milkha Bhaag.

The lyrics have been penned by Prasoon Joshi and the music has been composed by Shankar-Ehsaan-Loy.

Shankar's son Siddharth makes his singing debut with this song.