Britney Spears, reportedly on her way out at The X Factor, recently tweeted that she’s “working hard†on a follow-up to 2011’s Femme Fatale and “collaborating with some new inspiring producers.†Now we know one of them is Hit-Boy, the producer who dished up the beats for Kanye West and Jay-Z’s Grammy-nominated “N*ggas in Paris,†Kendrick Lamar’s incredible “Backseat Freestyle,†Kanye and G.O.O.D. Music’s “Clique,†and A$AP Rocky’s ferocious new jam “1 Train.†Feel free to be psyched.