Bollywood stars Hrithik Roshan, Katrina Kaif, Kalki Koechlin, Farhan Akhtar and Abhay from the Zindagi Na Milegi Dobara cast did an impromptu jig at the India TV Broadcast Centre on Monday as part of their roadshow. The stars had come all the way to Noida from Mumbai by road. Katrina, cut her birthday cake on the occasion and said 'I'm 28', to which Hrithik quipped: "I'm 37'.