Let's be real, these two albums are the least successful from both artists' discographies. Both had factors that went into their under performance. However, which one was more successful? Remember to factor in US album sales, WW album sales, tour receipts, single sales, and impact.
Well let's be honest, it's hard to tell with her discography exactly which of her albums is least successful.
Anyways, even though it was a "flop era", Miley still wins. Can't Be Tamed's sole US single went top 10 and went Platinum, the album still performed well WW and her South American/Austrailian/Asian tour still grossed 25+M on 21 dates.
Katy Perry / Rihanna
Britney Spears / Christina Aguilera / Ke$ha / Carly Rae Jepsen