Most of my albums are Rock. So about all of those.

Hello My Name is... - Bridgit Mendler
Trouble - Bonnie Mcknee
Stick & Stones - Cher Lloyd x4
Paradise - Cody Simpson
Surfers Paradise - Cody Simpson
All The Right Wrongs - Emily Osment
Brave - Jennifer Lopez
Can't Be Tamed - Miley Cyrus
Shane Harper
#WillPower - Will.I.Am
Zendaya

Rated R and Bionic

Goodbye Lullaby
Bionic (which I bought in store like 2 months after it had been released when it was flopping to hell, no shame)
Lotus

Night Time My Time
True Romance
Britney Jean
Warrior
Lotus
MDNA
Can't Be Tamed
Hands

ARTPOP is an amazing album that got an undeserved rep due to external issues imo.

My December is Kelly's best album.

Goodbye Lullaby was a vast improvement over The Best Damn Thing, but she went downhill even worse with her self-titled.

Hands All Over did really poorly when I bought it, but I think it renounced after MLJ & went platinum. By far their best work.

ARTPOP (physical and digital)

Before they Flopped or after they flopped

Warrior and Avril Lavigne

I bought this as well.

I dont consider most of these albums flop since a lot of what I listen to still sells nothing compared to some of these mainstream albums.

Kiss Somethin' 'Bout Kreay

ARTPOP, Somethin' Bout Kreay, and Zendaya.

Britney Jean, Warrior, Bionic, CIARA, Music Of The Sun, Perfectionist, both Keri Hilson alberms, Avril Lavigne and many many more ...