raps on Instagram: "Nicki went off today on Twitter blaming Jay Z and Roc Nation for blocking her entire rollout. She says her new album and world tour were both cancelled because of industry jealousy and power moves behind the scenes. She even tagged Jay Z directly and hinted Beyoncé was involved too. Fans are calling it one of her wildest rants ever. If true, they should put the past in the past and collab for the culture. #nickiminaj #sza #cardib #beyonce #hiphopmusic"