Kareena Kapoor Khan is one Queen Bee of Bollywood, alright! She just enthralled us with her performance in R Balki???s Ki & Ka post which she is on a vacay with hubby. And her holiday seems to never end. Bollywood???s favourite couple Saif and Kareena are currently in London, you know chilling! They were celebrating Karan Johar???s birthday till wee hours yesterday and we chanced upon these pictures of them taking a leisurely stroll in the bylanes of London.