Welcome to BillboardTop100of.com
2005
| 1 | Mariah Carey | We Belong Together |
| 2 | Gwen Stefani | Hollaback Girl |
| 3 | Mario | Let Me Love You |
| 4 | Kelly Clarkson | Since U Been Gone |
| 5 | Ciara feat. Missy Elliott | 1, 2 Step |
| 6 | Kanye West feat. Jamie Foxx | Gold Digger |
| 7 | Green Day | Boulevard of Broken Dreams |
| 8 | 50 Cent feat. Olivia | Candy Shop |
| 9 | The Pussycat Dolls feat. Busta Rhymes | Don’t Cha |
| 10 | Kelly Clarkson | Behind These Hazel Eyes |
| 11 | 50 Cent | Disco Inferno |
| 12 | Lifehouse | You and Me |
| 13 | The Black Eyed Peas | Don’t Phunk With My Heart |
| 14 | Missy Elliott feat. Ciara and Fat Man Scoop | Lose Control |
| 15 | Mariah Carey | Shake it Off |
| 16 | The Killers | Mr. Brightside |
| 17 | 50 Cent | Just a Lil Bit |
| 18 | Rihanna | Pon de Replay |
| 19 | The Game feat. 50 Cent | How We Do |
| 20 | Weezer | Beverly Hills |
| 21 | Ciara feat. Ludacris | Oh |
| 22 | Rob Thomas | Lonely No More |
| 23 | Snoop Dogg feat. Pharrell | Drop it Like It’s Hot |
| 24 | The Game feat. 50 Cent | Hate It or Love It |
| 25 | Lil Jon and The East Side Boyz feat. Usher and Ludacris | Lovers and Friends |
| 26 | Destiny’s Child feat. T.I. and Lil Wayne | Soldier |
| 27 | Kelly Clarkson | Breakaway |
| 28 | Will Smith | Switch |
| 29 | Bow Wow feat. Omarion | Let Me HOld You |
| 30 | Bow Wow feat. Ciara | Like You |
| 31 | Gwen Stefani feat. Eve | Rich Girl |
| 32 | The Black Eyed Peas | My Humps |
| 33 | Frankie J feat. Baby Bash | Obsession (No Es Amor) |
| 34 | Usher | Caught Up |
| 35 | D.H.T. | Listen to your Heart |
| 36 | Papa Roach | Scars |
| 37 | Gorillaz | Feel Good Inc |
| 38 | 3 Doors Down | Let Me Go |
| 39 | Green Day | Holiday |
| 40 | Fall Out Boy | Sugar, we’re Goin’ Down |
| 41 | Pretty Ricky | Grind With Me |
| 42 | Chris Brown | Run It! |
| 43 | Nickelback | Photograph |
| 44 | Akon | Lonely |
| 45 | Howie Day | Collide |
| 46 | Green Day | Wake Me up When September Ends |
| 47 | Bobby Valentino | Slow Down |
| 48 | Nelly feat. Tim McGraw | Over and Over |
| 49 | Trillville feat. Cutty | Some Cut |
| 50 | Fat Joe feat. Nelly | Get it Poppin’ |
| 51 | David Banner | Play |
| 52 | Young Jeezy feat. Akon | Soul Survivor |
| 53 | Ludacris feat. Bobby Valentino | Pimpin’ All Over the World |
| 54 | Usher And Alicia Keys | My Boo |
| 55 | Trick Daddy feat. Ludacris, Lil’ Kim and Cee-Lo | Sugar (Gimme Some) |
| 56 | Alicia Keys | Karma |
| 57 | Coldplay | Speed of Sound |
| 58 | Gavin DeGraw | I Don’t Want to Be |
| 59 | Eminem | Mockingbird |
| 60 | Shakira feat. Alejandro Sanz | La Tortura |
| 61 | Maroon5 | She Will be Loved |
| 62 | Baby Bash feat. Akon | Baby I’m Back |
| 63 | Ying Yang Twins | Wait (The Whisper Song) |
| 64 | Backstreet Boys | Incomplete |
| 65 | T.I. | Bring em Out |
| 66 | Destiny’s Child | Cater 2 U |
| 67 | Amerie | 1 Thing |
| 68 | Foo Fighters | Best of You |
| 69 | Mariah Carey | It’s Like That |
| 70 | Natalie | Goin’ Crazy |
| 71 | Carrie Underwood | Inside your Heaven |
| 72 | Kelly Clarkson | Because of You |
| 73 | Fantasia | Truth Is |
| 74 | Pretty Ricky | Your Body |
| 75 | Jesse McCartney | Beautiful Soul |
| 76 | Gwen Stefani | Cool |
| 77 | Ludacris | Get Back |
| 78 | 50 Cent feat. Mobb Deep | Outta Control (Remix) |
| 79 | T.I. | U Don’t Know Me |
| 80 | Natasha Bedingfield | These Words |
| 81 | The Black Eyed Peas | Don’t Lie |
| 82 | Jennifer Lopez | Get Right |
| 83 | John Mayer | Daughters |
| 84 | Toby Keith | As Good as I Once Was |
| 85 | Brooke Valentine feat. Lil Jon and Big Boi | Girlfight |
| 86 | Destiny’s Child | Lose My Breath |
| 87 | John Legend | Ordinary People |
| 88 | Sean Paul | We Be Burnin’ |
| 89 | The Click Five | Just the Girl |
| 90 | Ryan Cabrera | True |
| 91 | Omarion | O |
| 92 | Mike Jones | Back Then |
| 93 | Jay-Z/Linkin Park | Numb/Encore |
| 94 | Ja Rule feat. R. Kelly and Ashanti | Wonderful |
| 95 | T-Pain | I’m Sprung |
| 96 | Gavin DeGraw | Chariot |
| 97 | 112 feat. Foxy Brown | U Already Know |
| 98 | Faith Hill | Mississippi Girl |
| 99 | Ludacris | Number One Spot |
| 100 | Webbie feat. Bun B | Give Me That |