List of Dutch Top 40 number-one singles of 1999These hits topped the Dutch Top 40 in 1999.Issue dateArtistSong2 JanuaryEmiliaBig Big World9 JanuaryEmiliaBig Big World16 JanuaryCherBelieve23 JanuaryThe OffspringPretty Fly (for a White Guy)30 JanuaryThe OffspringPretty Fly (for a White Guy)6 FebruaryThe OffspringPretty Fly (for a White Guy)13 February2pacChanges20 February2pacChanges27 February2pacChanges6 MarchBritney Spears...Baby One More Time13 MarchBritney Spears...Baby One More Time20 MarchDJ JeanThe Launch27 MarchDJ JeanThe Launch3 AprilBritney Spears...Baby One More Time10 AprilBritney Spears...Baby One More Time17 AprilVengaboysWe're Going to Ibiza24 AprilVengaboysWe're Going to Ibiza1 MayVengaboysWe're Going to Ibiza8 MayBackstreet BoysI Want It That Way15 MayBackstreet BoysI Want It That Way22 MayBackstreet BoysI Want It That Way29 MayBackstreet BoysI Want It That Way5 JuneToy-BoxBest Friend12 JuneToy-BoxBest Friend19 JuneToy-BoxBest Friend26 JuneToy-BoxBest Friend3 JulyBritney SpearsSometimes10 JulyBritney SpearsSometimes17 JulyJennifer LopezIf You Had My Love24 JulyLou BegaMambo No. 5 (A Little Bit Of...)31 JulyLou BegaMambo No. 5 (A Little Bit Of...)7 AugustLou BegaMambo No. 5 (A Little Bit Of...)14 AugustLou BegaMambo No. 5 (A Little Bit Of...)21 AugustEiffel 65Blue (Da Ba Dee)28 AugustEiffel 65Blue (Da Ba Dee)4 SeptemberEiffel 65Blue (Da Ba Dee)11 SeptemberEiffel 65Blue (Da Ba Dee)18 SeptemberEiffel 65Blue (Da Ba Dee)25 SeptemberCity to CityThe road ahead 2 OctoberCity to CityThe road ahead 9 OctoberCity to CityThe road ahead 16 OctoberCity to CityThe road ahead 23 OctoberR. KellyIf I Could Turn Back the Hands of Time30 OctoberR. KellyIf I Could Turn Back the Hands of Time6 NovemberR. KellyIf I Could Turn Back the Hands of Time13 NovemberR. KellyIf I Could Turn Back the Hands of Time20 NovemberR. KellyIf I Could Turn Back the Hands of Time27 NovemberR. KellyIf I Could Turn Back the Hands of Time4 DecemberR. KellyIf I Could Turn Back the Hands of Time11 DecemberR. KellyIf I Could Turn Back the Hands of Time18 DecemberDef RhymzDoekoe25 DecemberMarco BorsatoBinnen