“Want You Back” opens with Cher Lloyd rhyming and phrasing like Nicki Minaj over a quirky retro-R&B backdrop that also shares DNA with vintage Neneh Cherry. The following “Grow Up” boasts even more complex lyrical wizardry, as Busta Rhymes and Lloyd tag-team the microphones with a rapid-fire delivery over a confectionary mix that blends electronic dance music textures with hints of '60s girl-group production.