Adele if she releases next year

SMS Miley ft.Britney

Also Rihanna!

Adele is she has an album release but I don't think she will.
Katy, Britney and Miley will be the right contenders

Leona Lewis. Mark my words.

Nicki.

Britney spears

Lana

Shakira her 2014 World Cup single will be another Hips Don't Lie.

Beyoncé

She wont be doing the world cup song, but her monster global single will outshine the flop world cup song again as in 2006

If Shaki ever decides to release..

Shakira hasn't slayed anything in almost a decade, so other.

Miley Cyrus

Um.... Adele.... Duh. Nothing's official yet, but her new album is rumored to be out by 2014. I couldn't see it being released any later, so I'm just gonna keep my fingers crossed. Everyone, get ready to feel the wrath of Adele again.

If she has not released anything by january 2014 i will kill her myself and imagine her slayage after dying, dominating the top 100 of basically every itunes store in the world

Rihanna

Glad to see you burning in hell as usual, apply cold water honey...