Nicki Minaj's unique combination of ferocity and humor, and a rap style built on razor-sharp wordplay, mercilessly blunt lyricism, and delivery that turns on a dime from sugary to snarling, has skyrocketed her from mixtape phenom to enduring global pop star.The rapper's early days included attempts at an acting career and losing her job at Red Lobster for being rude to customers, but she progressed quickly from MySpace demos to nationally adored mixtapes to household-name status. Pink Friday, Minaj's 2010 album debut, saw her appeal to a broader audience with chart-topping rec...