<span class=normal>Aamir Khan has lent his voice for a couple of films including 1998 hit Ghulam. The song Aati kya Khandala had become wildly popular. <br><br><br><p class=clear>&nbsp;</p>Directed by Nitesh Tiwari, Dangal also stars Sakshi Tanwar, Fatima Sana Sheikh, Sanya Malhotra among others and is slated to release on December 23. </span>