This year has been a roller coaster of emotions for a variety of reasons, and as such apps for mental well-being have been in the spotlight quite a bit. Calm, one of the most popular meditation and sleep apps out there, scored a somewhat unexpected bit of exclusive content — massive electronic musician and producer Diplo is previewing his new album through the app right now. The album, titled MMXX, is the “only music” Diplo made and plans to release this year.