Many actors and actresses are exploring their talent for singing, as with single song stints for their films and Priyanka Chopra is about to join this race. The actress has already released international hit releases and now she wants to go desi. As she always expressed her desire to sing for a film, she is now fulfilling it with Mary Kom. Along with the soon expected trailer release of this film we might get a glimpse of Priyanka's singing. The actress has been working very hard for this film as she considers this as one of the toughest roles she has done so far.