Kareena Kapoor Khan turned 37 yesterday and began her special day with her gym schedule as usual. But as the day came to an end, she let her hair down. Bebo hosted a bash for several of her Bollywood friends at the Khan residence at Fortune Heights in Bandra. Karan Johar, Karisma Kapoor with beau Sandeep Toshniwal, Sanjay Kapoor with wife Seema Kapoor, bestie Amrita Arora Ladak, Soha Ali Khan, Kunal Kemmu and Manish Malhotra were among those invited to the party. Interestingly, rumored to be a couple, Malaika Arora Khan and Arjun Kapoor too partied under the same roof.