Nicki Minaj is running around in full Barbie costume.  Nicki vamped things up for her fans in the UK at her ‘Pink Friday: Roman Reloaded’ album signing, which was held at HMV.  The “Stupid Hoe” rapper was rocking a pink and black corset with a tutu that had “Barbie” printed on it, paired with troll printed stockings and a pair of sky high pink boots.