Sixer is an upcoming comedy entertainer starring Vaibhav, Pallak Lalwani and Sathish among others. It is written and directed by Chachi and produced by Dinesh Kannan and K Sridhar under the banner of Wallmate Entertainment in association with R Ravindran under the banner Trident Arts. Sixer has music composed by Ghibran and Sivakarthikeyan has crooned for one of the songs titled ‘kaakaa kaakaa.’ Apparently, he will be singing along with Vaibhav. The makers have now released a promo video of Sivakarthikeyan and Vaibhav practising their lines for the song. Check out a few screenshots and the promo video: