On-Deck:

15. Katharine McPhee "Over It"
14. Pussycat Dolls "I Don't Need A Man" [FALL OFF]
13. Nelly Furtado "All Good Things (Come To An End)"
12. Daughtry "Home" [FALL OFF]
11. Carrie Underwood "Before He Cheats"

Countdown:

10. Evanescence "Sweet Sacrifice" [RETURN]
9. Justin Timberlake "What Goes Around...Comes Around" [-2]
8. Gwen Stefani "4 In The Morning" [DEBUT]
7. Maroon 5 "Makes Me Wonder" [-4]
6. Christina Aguilera "Candyman" [+2]
5. Hilary Duff "With Love" [-3]
4. Avril Lavigne "Girlfriend" [+2]
3. Beyonce f/Shakira "Beautiful Liar" [+2]
2. Fall Out Boy "Thnks Fr Th Mmrs" [+2]
1. Linkin Park "What I've Done" [=]

On-Deck:
15. Timberland feat. Justin Timberlake & Nelly Furtado
14. Nelly Furtado
13. Evanescense
12. Daughtry
11. ***** Cat Dolls
Top Ten
10. Carrie Underwood *debut
09. Justin Timberlake
08. Gwen Stefani *debut
07. Christina Aguilera
06. Avril Lavigne
05. Beyonce & Shakira
04. Maroon 5
03. Hilary Duff
02. Fall Out Boy
01. Linkin' Park

10. Evanescence
09. Gwen Stefani
08. Justin Timberlake
07. Avril Lavigne
06. Christina Aguilera
05. Fall Out Boy
04. Maroon 5
03. Beyonce & Shakira
02. Linkin Park
01. Hilary Duff and tomorrow she will be retired :P

15. Fergie f/ Ludacris - Glamorous
14. Carrie Underwood - Before He Cheats
13. Evanescence - Sweet Sacrifice
12. The Pussycat Dolls - I Don't Need A Man
11. Christina Aguilera - Candyman

10. Gwen Stefani - 4 In The Morning
09. Nelly Furtado - All Good Things (Come To An End)
08. Daughtry - Home
07. Avril Lavigne - Girlfriend
06. Justin Timberlake - What Goes Around...Comes Around
05. Fall Out Boy - Thnks Fr Th Mmrs
04. Hilary Duff - With Love
03. Beyonce f/ Shakira - Beautiful Liar
02. Maroon 5 - Makes Me Wonder
01. Linkin Park - What I've Done

15. Nelly Furtado - All Good Things Come To An End
14. Fergie featuring Ludacris - Glamorous
13. Vanessa Hudgens - Say Ok
12. Daughtry - Home
11. Evanescence - Sweet Sacrifice

10.The Pussycat Dolls - I Don't Need A Man
09.Christina Aguilera - Candyman
08.Gwen Stefani - 4 In The Morning
07.Justin Timberlake - What Goes Around...Comes Around
06.Beyonce & Shakira - Beautiful Liar
05.Avril Lavigne - Girlfriend
04.Maroon 5 - Makes Me Wonder
03.Fall Out Boy - Thnks Fr Th Mmrs
02.Hilary Duff - With Love
01.Linkin Park - What I've Done

15. vanessa hudgens "say ok"
14. akon "don't matter"
13. nelly furtado "all good things"
12. evanescence "sweet sacrifice"
11. pussycat dolls "i don't need a man"

10. gwen stefani "4 in the morning"
09. christina aguilera "candyman"
08. daughtry "home"
07. beyonce "beautiful liar"
06. justin timberlake "what goes around"
05. avril lavigne "girlfriend"
04. maroon 5 "makes me wonder"
03. fall out boy "thnks fr th mmrs"
02. linkin park "what i've done"
01. hilary duff "with love"

On Deck:
15. Akon
14. Vanessa Hudgens
13. Carrie Underwood
12. Evanescence
11. Daughtry

Top Ten:
10. Christina Aguilera
9. Gwen Stefani *DEBUT*
8. Pussycat Dolls
7. Beyonce Ft. Shakira
6. Justin Timberlake
5. Maroon 5
4. Avril Lavigne
3. Hilary Duff
2. Fall Out Boy
1. Linkin Park

Fall Off: Daughtry

On Deck
15. Timbaland-Give it to me
14. Carrie Undewood- Before he cheats
13. Nelly Furtado- All Good Things (Come to an end)
12. Evanescense- Sweet Sacrifice
11. PCD- I dont need a man

10. Gwen Stefani- 4 in the morning
9. Daughtry- Home
8. Justin Timberlake- WGACBA
7. Christina Agulera- Candyman
6. Avril Lavinge- Girlfriend
5. Beyonce/Shakira- Beautiful Liar
4. Maroon 5- Makes me wonder
3. Fall Out Boy- Thnks fr the MMrs
2. Hilary Duff- With Love
1. Linkin Park- What I've Done

15.T-Pain - Buy U A Drank (Shawty Snappin')
14.Nelly Furtado - All Good Things (Come To An End)
13.Evanescence - Sweet Sacrifice
12.Lil Mama - Lip Gloss (No Music)
11.The Pussycat Dolls - I Don't Need A Man

10.Gwen Stefani - 4 In The Morning
09.Justin Timberlake - What Goes Around ... Comes Around
08.Daughtry - Home
07.Christina Aguilera - Candyman
06.Hilary Duff - With Love
05.Avril Lavigne - Girlfriend
04.Beyonce f/ Shakira - Beautiful Liar
03.Linkin Park - What I've Done
02.Fall Out Boy - Thnks Fr Th Mmrs
01.Maroon 5 - Makes Me Wonder

10. Lil Mama
9. Daughtry
8. PCD
7. Beyonce and Shakira
6.Justin
5. Christina
4.Maroon 5
3. Avril
2. Linkin Park
1. Hilary Duff