Photos: Nicki Minaj Celebrates Her 31st Birthday With A Boob Birthday Cake!

Nicki Minaj turned 31 years old yesterday and she celebrated with two voluptuous helpings of boob cake!
After arriving in a hot pink Lamboghini, the rapper strolled into Philippe restaurant in Bev Hills last night where she partied with friends.
The sweet treat read “Shake your … for Nicki”.