Top 40 Hits of Mid September 1999
| 1 | Lou Bega | Mambo No 5 (A Little Bit Of...) |
| 2 | DJ Jean | The Launch |
| 3 | The Vengaboys | We're Going To Ibiza! |
| 4 | Shaft | (Mucho Mambo) Sway |
| 5 | Eiffel 65 | Blue (Da Ba Dee) |
| 6 | Enrique Iglesias | Bailamos |
| 7 | Martine McCutcheon | I've Got You |
| 8 | Geri Halliwell | Mi Chico Latino |
| 9 | Lolly | Mickey |
| 10 | DJ Jurgen Presents Alice Deejay | Better Off Alone |
| 11 | A1 | Summertime Of Our Lives |
| 12 | Moloko | Sing It Back |
| 13 | TLC | Unpretty |
| 14 | Thunderbugs | Friends Forever |
| 15 | Westlife | If I Let You Go |
| 16 | Ricky Martin | Livin' La Vida Loca |
| 17 | Leftfield / Afrika Bambaataa | Afrika Shox |
| 18 | Bob Marley vs Funkstar De Luxe | Sun Is Shining |
| 19 | The Offspring | The Kids Aren't Alright |
| 20 | Bran Van 3000 | Drinking In L.A. |
| 21 | Supergrass | Moving |
| 22 | Ronan Keating | When You Say Nothing At All |
| 23 | Another Level featuring TQ | Summertime |
| 24 | Paul Johnson | Get Get Down |
| 25 | Texas | Summer Son |
| 26 | Will Smith featuring Dru Hill | Wild Wild West |
| 27 | Ocean Colour Scene | Profit In Peace |
| 28 | Agnelli & Nelson | Everyday |
| 29 | Sixpence None The Richer | There She Goes |
| 30 | Tom Jones & The Cardigans | Burning Down The House |
| 31 | A*Teens | Mamma Mia |
| 32 | Lyte Funkie Ones | Summer Girls |
| 33 | Binary Finary | 1999 |
| 34 | Stereophonics | I Wouldn't Believe Your Radio |
| 35 | Gomez | Rhythm And Blues Alibi |
| 36 | Shania Twain | That Don't Impress Me Much |
| 37 | Eminem featuring Dr Dre | Guilty Conscience |
| 38 | Apollo Four Forty | Stop The Rock |
| 39 | Five | If Ya Gettin' Down |
| 40 | Britney Spears | Sometimes |