Finally a song out of Amitabh Bachchan's favourite word 'Badumbaa' from the film '102 Not Out' is officially out and we have the oldest father-son duo of Mr. Bachchan and Rishi Kapoor grooving along in this peppy number. The music video looks like a charismatic carnival of happiness filled with Big B's elegance and Rishi Kapoor's mischievousness.

Amitabh and Rishi Kapoor themselves have crooned the song with their usual voice but the brisk composition of the song has made it look like a fest full of life soundtrack. Big B even sings few rap verses that are quirky to which, the actor's on-screen son Rishi responds in a similar fashion as well. Click here to watch Badumbaa official music video. 

Earlier Big B shared his black and white snap from the recording studio on his official twitter handle and captioned it "ZUMBA ZUMBA BADUMBAAA! Presenting a glimpse of BADUMBAAA! Watch the video and take part in the #MyBadumbaaaStep contest to meet me and @Chintskap! http://bit.ly/BadumbaaaOfficialTeaser … @umeshkshukla @SonyPicsIndia #AmitabhBhattacharya @JimitTrivedi06 @saregamaglobal #102NotOut.''

Directed by the 'Oh My God' director Umesh Shukla, '102 Not Out' is a story of the oldest father-son duo who live together. The film is slated to release on May 4.