When it's your best friends birthday, you try to bring out all the stops, from the venue to the guest list to the cake. But when it is a milestone year, it is your sole responsibility to make it as epic as possible. This is not just true for us regular folk but for celebrities as well. Recently we saw Alia Bhatt go into full BFF mode for her best friends wedding and the recent on to joining the bandwagon is the most sought-after #BFF gang Kareen Kapoor, Karisma Kapoor, and Amrita Arora.