An adorable video from Kareena Kapoor Khan, Saif Ali Khan and Taimur's Dharamshala trip has gone viral. In the video, Taimur can be seen singing 'Happy Birthday' for a hotel staff member who is cutting a birthday cake. Saif and Kareena are also seen animatedly participating in the celebrations. During the cake cutting session, an excited Taimur is singing 'Happy Birthday' in his loudest voice, and his dad asks him to mellow down and 'sing nicely'. Watch this video for more!