1. Britney Spears will open Nicki Minaj up to a whole new audience.
Nicki Minaj is on the cusp of becoming a pop star. Part of the reason she's been so successful is all of of Top 40 hits that she's appeared on. But a bigger part of the reason is her faithful "Barbies" that follow her on Twitter, dress up like her to attend her concerts, and show support for her regardless of what she's doing. As the Barbies go, so goes Nicki. And jumping on tour with one of the biggest pop stars on the planet (hey, love her or hate her, it's hard to deny Britney's influence over the course of the last decade) is only going to help her core fan base grow. That should be enough to take her career to the next level.