Through the week of the 20th, the AllMusic Blog will be publishing our editors' favorite albums of 2009. We'll be covering well over a dozen genres and styles, from rap to reggae, R&B to electronic, country to Latin, blues to metal, folk to soundtracks, and several points in-between. Right now, on the AllMusic Blog, we take a look at our favorite pop albums of 2009.

Lily Allen - It's Not Me, It's You
Mariah Carey - Memoirs of an Imperfect Angel
Kelly Clarkson - All I Ever Wanted
Cobra Starship - Hot Mess
Fall Out Boy - Believers Never Die: The Greatest Hits
Florence and the Machine - Lungs
Selena Gomez & the Scene - Kiss & Tell
Keri Hilson - In a Perfect World...
Janet Jackson - Number Ones
La Roux - La Roux (Bonus Track)
Lady Gaga - The Fame Monster
Little Boots - Hands
Demi Lovato - Here We Go Again
Madonna - Celebration (Deluxe Edition)
Metric - Fantasies
Mika - The Boy Who Knew Too Much
Rihanna - Rated R
Shakira - She Wolf
Britney Spears - The Singles Collection
Ashley Tisdale - Guilty Pleasure