An entertaining affair would be the right way to define the audio and trailer launch event of 'Ra.One' Tamil version that was held this morning at Sathyam Cinemas, Chennai. This is because apart from a usual host, the effervescent Shahrukh Khan itself pretty much compeered the event and engaged the gathered! IG had run a contest and winners got to attend this star-studded affair.

Shahrukh was such a sport that when a fan cheered asking SRK to dance, he asked for the music and danced for the "Chammak Challo..." song wowing one and all with his sportive self and moves.

Director Mani Ratnam, Suhasini Maniratnam, Santhosh Sivan, Soundarya Rajinikanth and Abirami Ramanathan graced the dais apart from the presence of many city celebs at the event.

The Tamil trailer and the new trailer version in Hindi were screened at the event which was well-received by the audience. This trailer has unveiled the much-anticipated look of Ra.One, Arjun Rampal that was kept under guard for so many days. This was followed by a press conference where Shahrukh handles the questions shot at him with ease.

When asked on Rajini, this is what SRK had to say, "Rajinikanth is such a humble person, we have all heard of how humble he is from so many people, but it is from him I learn how humility comes with success. I am indebted to his whole family. More than a cameo, I wanted this scene to be sort of a blessing from him". He further added that the Superstar is healthy and is in good health, seeing a speedy recovery.

SRK confirmed that the film will release worldwide for Diwali, in 3D and non-3D versions and might also see a release in German language. He also expressed that they have already confirmed 3200 theatres allover and are looking for more!