Nicki Minaj had plastic surgery before she got famous. The nose job before and after pictures show an extreme difference. The tip is thinner, more jagged, and looks unnatural after plastic surgery. Before surgery she appears to have a normal looking nose.
Wow, that's one thin nose. The tip looks pinched and appears to have very little cartilage support.
Look at how jagged and uneven her nose is. This before and after picture really captures just how different her nose is now.
Once again, the tip is the most obvious change after her nose job.