Karan Johar has always considered Kajol as a lucky charm for his films and for that reason he manages to get her in the film, even if it's just a 4-second appearance like in 'KHNH'. Now she will be seen in his forthcoming movie 'Kabhi Alvida Na Kehna'. She will feature in a guest appearance role in a song along with Amitabh and Abhishek Bachchan together. The song will also have the entire lead star cast of the film. This song will be shot in July. Riteish Desmukh's presence is another surprise in the. In the promotional brochure of it there is a picture of Riteish sitting next to Rani Mukherjee. There was also a buzz that Urmila Matondkar and John Abraham were in cameos in it. However this seems to be just rumors!