The first track from 'A Gentleman' starring Sidharth Malhotra and Jacqueline Fernandez is out.Titled 'Disco Disco Song', the song features the two gorgeous leads amidst a discotheque set-up, boogying to the peppy beats composed by Sachin-Jigar with verses penned by VAYU.While Sidharth appears his dapper self, Jacqueline's beautiful dance moves and costumes are reminiscent of the way she appeared in her past dance number, 'Lat Lag Gayee' from 'Race 2'.Also starring Suniel Shetty, Darshan Kumar, Rajit Kapur, Supriya Pilgaonkar and Amit Mistry, 'A Gentleman' has been directed by Raj and DK, and is slated to release in cinemas on August 25, 2017.