The composition and vocals of the title track of 'Ae Dil Hai Mushkil' won over the hearts of the audience, worldwide.Now, Karan Johar is all set to showcase the next track from the film, named 'Bulleya'. The director took to social media to release the first look of the song. Apparently the song will be a Sufi rendition featuring Aishwarya Rai Bachchan and Ranbir Kapoor.From the first look, one can sense the chemistry oozing between the two co-stars.'Ae Dil Hai Mushkil' also stars Anushka Sharma and Fawad Khan, and will feature an extended cameo by Shah Rukh Khan.The song is expected to be out on September 16.Watch this space for further updates.