New Delhi, Feb 17 (ANI): Delhi University's Hansraj College played a perfect host for Bollywood superstar Shah Rukh Khan as he chose his alma mater to launch the very first song of his upcoming film 'Fan'. The song titled 'Jabra Fan', which is being promoted as the 'Fan' anthem, features Shah Rukh Khan as his crazy doppelganger fan. An informal version of 'Jabardast Fan', the song features SRK's doppelganger role Gaurav where he can be seen dancing and celebrating his love for the superstar. Composed by composer duo Vishal-Shekhar, 'Jabra Fan', has been sung by Nakash Aziz and penned down by 'Masaan' fame Varun Grover. The song will not be a part of the film, rather has been used as a promotional one. The trailer of the film will be out on February 29 and will it will hit the theatres on April 15.