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| This Week | Last Week | Change | Song | Artist | Weeks On | Peak | |
| 1 | 1 | Potential Breakup Song | Aly & AJ | 5 | 1 (#2) | ||
| 2 | What Time Is It | High School Musical Cast | 1 | 2 | |||
| 3 | Don't Stop The Music | Rihanna | 1 | 3 | |||
| 4 | 3 | Stranger | Hilary Duff | 4 | 2 | ||
| 5 | 12 | Nobody's Perfect | Miley Cyrus | 8 | 1 (#1) | ||
| 6 | 4 | Bubbly | Colbie Caillat | 6 | 1 (#1) | ||
| 7 | 2 | The Way I Are | Timbaland/Keri Hilson | 3 | 2 | ||
| 8 | Tell Me What We're Gonna do Now | Joss Stone | 1 | 8 | |||
| 9 | 9 | Real Girl | Mutya Buena | 6 | 5 | ||
| 10 | 6 | Shut Up & Drive | Rihanna | 3 | 4 | ||
| 11 | 5 | Like This | Kelly Rowland | 10 | 1 (#1) | ||
| 12 | 14 | LoveStoned | Justin Timberlake | 3 | 12 | ||
| 13 | 15 | Whine Up | Kat Deluna | 3 | 12 | ||
| 14 | 7 | When You're Gone | Avril Lavigne | 6 | 1 (#1) | ||
| 15 | 12 | Girlfriend (Remix) | Avril Lavigne ft. Lil Mama | 4 | 10 | ||
| 16 | 17 | You Know I'm No Good | Amy Winehouse | 9 | 3 | ||
| 17 | RETURN | Big Girls Don't Cry | Fergie | 6 | 11 | ||
| 18 | 18 | Lip Gloss | Lil Mama | 6 | 13 | ||
| 19 | 20 | Crazy |
| 2 | 20 | ||
| 20 | 10 | Love Story | Katharine McPhee | 3 | 10 |
| This Week | Last Week | Change | Song | Artist | Weeks On | Peak |
| 1 | 6 | Potential Breakup Song | Aly & AJ | 4 | 1 (#1) | |
| 2 | 16 | The Way I Are | Timbaland & Keri Hilson | 2 | 2 | |
| 3 | 2 | Stranger | Hilary Duff | 3 | 2 | |
| 4 | 1 (#1) | Bubbly | Colbie Caillat | 5 | 1 (#1) | |
| 5 | 3 | Like This | Kelly Rowland & Eve | 9 | 1 (#1) | |
| 6 | 4 | Shut Up & Drive | Rihanna | 2 | 4 | |
| 7 | 7 | When You're Gone | Avril Lavigne | 5 | 1 (#1) | |
| 8 | 8 | Never Again | Kelly Clarkson | 10 | 2 | |
| 9 | 5 | Real Girl | Mutya Buena | 5 | 5 | |
| 10 | 10 | Love Story | Katharine McPhee | 2 | 10 | |
| 11 | RETURN | Orange County | Stefy Rae | 7 | 8 | |
| 12 | 15 | Nobody's Perfect | Miley Cyrus | 7 | 1 (#1) | |
| 13 | 11 | Girlfriend (Remix) | Avril Lavigne/Lil Mama | 3 | 10 | |
| 14 | 17 | Lovestoned | Justin Timberlake | 2 | 14 | |
| 15 | 18 | Whine Up | Kat Deluna | 2 | 15 | |
| 16 | 20 | Nolita Fairytale | Vanessa Carlton | 2 | 16 | |
| 17 | 12 | You Know I'm No Good | Amy Winehouse | 8 | 3 | |
| 18 | RETURN | Lip Gloss | Lil Mama | 5 | 13 | |
| 19 | 14 | Do You Know? | Enrique Iglesias | 7 | 5 | |
| 20 | Crazy | Lumidee/Pitbull | 1 | 20 |
| This Week | Last Week | Change | Song | Artist | Weeks On | Peak |
| 1 | 2 | Bubbly | Colbie Caillat | 4 | 1 (#1) | |
| 2 | 9 | Stranger | Hilary Duff | 2 | 2 | |
| 3 | 1 (#1) | Like This | Kelly Rowland | 8 | 1 (#1) | |
| 4 | Shut Up & Drive | Rihanna | 1 | 4 | ||
| 5 | 8 | Real Girl | Mutya Buena | 4 | 5 | |
| 6 | 4 | Potential Breakup Song | Aly & AJ | 3 | 2 | |
| 7 | 3 | When You're Gone | Avril Lavigne | 4 | 1 (#1) | |
| 8 | 7 | Never Again | Kelly Clarkson | 9 | 2 | |
| 9 | 5 | When I See U | Fantasia | 10 | 2 | |
| 10 | Love Story | Katharine McPhee | 1 | 10 | ||
| 11 | 10 | Girlfriend Remix | Avril Lavigne | 2 | 10 | |
| 12 | 6 | You Know I'm No Good | Amy Winehouse | 7 | 3 | |
| 13 | Jenny | The Click Five | 1 | 13 | ||
| 14 | 18 | Do You Know (The Ping Pong Song) | Enrique Iglesias | 6 | 5 | |
| 15 | 15 | Nobody's Perfect | Miley Cyrus | 6 | 1 (#1) | |
| 16 | The Way I Are | Timbaland Feat. Keri Hilson | 1 | 16 | ||
| 17 | LoveStoned | Justin Timberlake | 1 | 17 | ||
| 18 | Whine Up | Kat Deluna | 1 | 18 | ||
| 19 | 20 | 4 In The Morning | Gwen Stefani | 8 | 8 | |
| 20 | Nolita Fairytale | Vanessa Carlton | 1 | 20 |