Film legend Amitabh Bachchan announced the launch of a world tour next year that would include his son and daughter-in-law and other leading Bollywood stars to celebrate Indian cinema and reach out to the large Indian disapora. The world tour will be called ‘The Unforgettable Tour’ and will feature Big B, Abhishek Bachchan, Aishwarya Rai, Lara Dutta, Riteish Deshmukh and Bipasha Basu.Ace dancer Shiamak Davar will choreograph the event and Vipul Shah will take care of the music during the tour. The tour that starts from April next year, will cover 18 countries of the six continents and will be staged in mainstream international venues.