Flower ID

This pungent flower appeared on my walk today. It smells heavenly and looks like it's a parasitic plant feeding off a tree. Anyone have a clue what it is? --UPDATE--Scroll down to see the answer!

We have two winners! Our friends Jennifer and Flora have both identified this as a Cannonball Tree or Couroupita guianensis. It's not a parasite but a tree that carries its fruit close to the trunk. The big round ripe fruit fall and can do some damage hence the connonball reference. 

Wikipedia: http://en.wikipedia.org/wiki/Couroupita_guianensis