I’m sorry to say but Ariana grande replace Mariah Carey & Christina Aguilera. Christina should promote forthcoming album and of course tour. Then go back too the’ Voice & collect. I’m still waiting to see how Roc nation will make any other promotion different from Mariah last attempts. They’re both icons in their on individual lanes, but of course Mariah Carey’s the Predecessor. They both should focus being entrepreneurs for their brand. Be more like a Jessica Simpson, but leave the music alone.