One album per artist plz thanks.

1. Contra [Vampire Weekend]
2. Avalanche [Quadron]
3. Body Talk [Robyn]
4. The Idler Wheel ... [Fiona Apple]
5. Let England Shake [P.J. Harvey]
6. Speak Now [Taylor Swift]
7. Devotion [Jessie Ware]
8. Woman [Rhye]
9. On a Misson [Katy B]
10. Beyoncé [Beyoncé]

It was REALLY hard choosing the Taylor/Bey albums.

"Electra Heart", Marina and The Diamonds
"Beacon", Two Door Cinema Club
"Colour of the Trap", Miles Kane
"Coexist", The xx
"English Rain", Gabrielle Aplin
"Ever After", Marianas Trench
"Holy Fire". The Foals
"In a Perfect World", Kodaline
"Birdy", Birdy
"Native", OneRepublic
"Crazy for You", Best Coast

HM: "21" by Adele

Top 6 (Since I can't count Taylor twice )
Beyoncé - 4
Florence + The Machine - Ceremonials
Kacey Musgraves - Same Trailer Different Park
Lorde - Pure Heroine
Sam Smith - In The Lonely Hour
Taylor Swift - Speak Now

The contenders for the remaining 4 spots:
Adam Lambert - Trespassing
Adele - 21
Beyoncé - Beyoncé
Coldplay - Ghost Stories
Ellie Goulding - Halcyon
FROZEN
fun - Some Nights
Lady Gaga - Born This Way
Natalia Kills - Trouble
Taylor Swift - Red
Tegan & Sara - Heartthrob

BEYONCÉ
Body Talk
Pure Heroine
Bangerz
True Romance
Yeezus
Long.Live.A$AP
The Family Jewels
Born to Die

No necessary order

4
Born This Way
Ceremonials
Wounded Rhymes
Red
Samson & Delilah
True
The Family Jewels
The ArchAndriod
Kin

Teenage Dream
Wounded Rhymes
Blown Away
Same Trailer, Different Park
Like a Rose
Chief
Sempiternal
Paramore
PRISM
12 stories

Is "." an Ed Sheeran album?

Born This Way (2011) - Lady Gaga
ARTPOP (2013) - Lady Gaga (Yeah, I picked 2 Gaga albums. Sue me.)
Born To Die (2012) - Lana Del Rey
Pure Heroine (2013) - Lorde
Teenage Dream (2010) - Katy Perry
PRISM (2013) - Katy Perry (Yeah, I picked 2 Katy albums. Sue me.)
Bad Blood (2013) - Bastille

That's all I can think of right now...

Beyonce
21
MBDTF
The electric lady
good kid m.A.A.d. city
Kaleidoscope Dream
Devotion- Jessie ware

I can't think of any other 4 atm

01. Adele - 21
02. Mumford & Sons - Babel
03. One Direction - Take Me Home
04. Mariah Carey - Me. I Am Mariah... The Elusive Chanteuse
05. Taylor Swift - Speak Now
06. Jake Bugg - Jake Bugg
07. Avril Lavigne - Avril Lavigne
08. Lily Kershaw - Midnight In The Garden
09. Ariana Grande - Yours Truly
10. Luke Bryan - Tailgates & Tanlines

21 - Adele
BEYONCÉ - Beyonce
Lungs - Florence + The Machine
Born This Way - Lady Gaga
All I Want Is You - Miguel
Teenage Dream - Katy Perry
My Beautiful Dark Twisted Fantasy - Kayne West
Speak Now - Taylor Swift
Random Access Memories - Draft Punk
Pure Heroine - Lords

Can't really put an order, but here it is.

My Beautiful Dark Twisted Fantasy (2010)
4 (2011) [So hard to choose over BEYONCÉ]
Take Care (2011)
Watch the Throne (2011)
Two Eleven (2012)
Looking 4 Myself (2012)
Kaleidoscope Dream (2012)
Rebellious Soul (2013)
Yours Truly (2013)
Me. I Am Mariah... The Elusive Chanteuse (2014)

I feel it's much harder to do this than it is with twice as many years from 00 to 09.

SERIOUSLY. Doing 00-09 isn't even hard