Da Fame & In Da Zone & BDay

Lady GaGa and possibly Rihanna.

^ Well, Rihanna has kinda been around for 5 years already.

Kesha deff. Maybe Katy.
Taio Cruz, Flo Rida, Bieber

^^ I was gonna say that too, Rihanna had more No. 1 hits in her home country than Bey, Brit, or Gaga.

Ke$ha might last, I dunno

Jason Derulo

Kesha,Katy,Keri Hilson,Ciara maybe Rihanna in a couple of years.

I hope not.

And agree.

Probably Ke$ha but I like her songs.

Katy Perry, I think.

Miley Cyrus and Justin Bieber.

I think Rihanna is a chameleon and as long as she keeps reinventing herself and stays fresh then she will be around for a while yet

I vote Katy in too would have but this year her songs had proven me wrong, or she had gone the commercial route and loose the personal feel to her music.

I like Ke$ha but since she's already underperforming with her second album, I'm starting to think she's just a one hit wonder.

You never know, though.

Glee
Duffy
Akon
Ne-Yo
Selena Gomez & The Scene

Katy,Bieber,Kesha defenitly

I know what you mean, and in comparison to Katy, she's very underperforming.

Both had released sophomore albums yet Katy took a longer break than hers and seems to do amazingly better.

I, too, am worried about Katy.

Kesha a bit less...she has her own, completely unique style and sound and keeps improving. She might last.

Gaga may or may not lose steam. It's too early to tell for all of these.

Justin Bieber.

I want all those three gone.

I think I need to add Bieber in the list, he's so forgettable with the generic pop songs.

Yeah...Katy is everywhere these days though. She's probably the most promoted Pop artist right now. No wonder she's doing so well.