I know it's Gwen but the highest she's debuting is #10 at best

10. It Ends Tonight
9. Famous Last Words
8. Walk Away
7. Promise
6. How To Save A Life
5. How To Touch A Girl
4. Say It Right
3. Irreplaceable
2. Lithium
1. This Ain't A Scene, It's An Arms Race

Now if Promise and Ride For You just fell off, it'd be a perfect countdown

On Deck:
15. Gym Class Heroes - Cupids Chokehold
14. Omarion - Ice Box
13. Akon f/Snoop Dogg - I Wanna Love You
12. Llyod f/Lil' Wayne - You
11. Ciara - Promise

The Top Ten:
10. Gwen Stefani f/Akon - Sweet Escape
09. My Chemical Romance - Famous Last Words
08. Paula DeAnda - Walk Away
07. JoJo - How To Touch A Girl
06. Danity Kane - Ride For You
05. The Fray - How To Save A Life
04. Evanescence - Lithium
03. Nelly Furtado - Say It Right
02. Beyonce - Irreplaceable
01. Fall Out Boy - This Ain't A Scene, It's An Arms Race

15. I wanna love you
14. It Ends Tonight
13. you
12. Panic! At The Disco
11. Promise

10. Famous Last Words
9. Walk Away
8. The Sweet Escape
7. How To Save A Life
6. Ride For You
5. How To Touch A Girl
4. Say It Right
3. Lithium
2. Irreplaceable
1. This Aint A Scene, Its An Arms Race

OFF: Ciara
10. Danity Kane
9. Paula
8. MCR
7. Gwen Stefani
6. Nelly
5. The Fray
4. JoJo
3. Evanescence
2. Fall Out Boy
1. Beyonce

falloff: ciara
10 Jojo
9 gwen stefani (debut)
8 paula de anda
7 danity kane
6 the fray
5 MCR
4 evanescence
3 fall out boy
2 beyonce
1 nelly

I hope CiCi doesn't fall off.

15 Panic!
14
13 Lloyd
12 Ludacris
11 Paula
------------
10 Danity Kane
09 MCR
08 Ciara
07 Gwen
06 The Fray
05 JoJo
04 Evanescence
03 FOB
02 Nelly F
01 Beyonce

15. Bow Wow - Shortie Like Mine
14. Fergie - Fergalicious
13. Panic! At the Disco - Lying is the Most Fun a Girl Could Have...
12. Lloyd - You
11. Ciara - Promise

10. Gwen Stefani - The Sweet Escape
09. The Fray - How To Save A Life
08. My Chemical Romance - Famous Last Words
07. Paula Deanda - Walk Away
06. Danity Kane - Ride For You
05. JoJo - How To Touch A Girl
04. Nelly Furtado - Say It Right
03. Evanescence - Lithium
02. Beyonce - Irreplaceable
01. FOB - This Ain't A Scene, It's An Arms Race

15 Lost Ones
14 Liar
13 Promise
12 You
11 Fergalicious

10 How to Touch a Girl *GAMBLE*
9 Ride For You
8 The Sweet Escape
7 Say It Right
6 Walk Away *GAMBLE*
5 Famous Last Words
4 How to Save a Life
3 Irreplaceable
2 Lithium *GAMBLE*
1 This Ain't a Scene

10. Famous Last words
09. The Sweet Escape
08. Walk Away
07. Ride For You
06. How To Touch A Girl
05. How To Save A Life
04. Lithium
03. Irreplaceable
02. Say It Right
01. It Ain't A Scene...