Nicki Minaj Exposes Nips for a performance, Semi Nude? (see photos)

One of Nicki Minaj's nipples set itself free when she took to the stage at London's Wireless Festival on Sunday evening in a very skimpy outfit. See the lovely pics below:

18+: Checkout new Nicki Minaj puts hot boobs on ShowCase (photos)

Nicki Minaj is currently in Austin Texas to perform at the XGames. The beautiful rapper shared these photos before she went on stage. More photos below: