#NickiMinaj, #Rihanna, #KatyPerry,and, #LadyGaga all have new album's coming out.
Nicki Minaj- Pink Friday: The Pinkprint (confirmed)
Lady Gaga- ARTPOP (confirmed)
Katy Perry- Unnamed album (confirmed)
Rihanna- Unnamed Album (not confirmed- though assumed because she has new album every year)