I just saw a pattern of success for these leading Disney/Nick girls according on their peak year:

2013 - Miley Cyrus - headlines, VMA's controversy, hit singles (WCT, WB)
2014 - Ariana Grande - hit singles after single (Problem, Bang Bang, Break Free, LMH)
2015 - Selena Gomez - acclaimed album (74 on MC) + hit singles (GFY, SOL, + future hit HTM)

will it be Demi's year next year?

Originally posted by Torturo She doesn't have a new album coming out though

Originally posted by igninton Demi's album got 74 on Metacrtic too with the same reviews as Revival got. Let's not act like Revival is any more acclaimed than Confident.

Originally posted by Supersymmetry 2017 maybe.

Originally posted by igninton Also, Confident sold more than Revival worldwide and CFTS did better worldwide than GFY. I really don't know what you mean, unless you're talking about US receipts.