Question: what song was number 1 on december 12 1999
Answer: 22 May 29 June 5 June 12 `` If You Had My Love '' Jennifer Lopez June 19 June 26 July 3 July 10 July 17 `` Bills , Bills , Bills '' Destiny 's Child July 24 `` Wild Wild West '' Will Smith featuring Dru Hill and Kool Moe Dee July 31 `` Genie in a Bottle '' Christina Aguilera August 7 August 14 August 21 August 28 September 4 `` Bailamos '' Enrique Iglesias September 11 September 18 `` Unpretty '' TLC September 25 October 2 October 9 `` Heartbreaker '' Mariah Carey featuring Jay - Z October 16 October 23 `` Smooth '' Santana featuring Rob Thomas October 30 November 6 November 13 November 20 November 27 December 4 December 11 December 18 December 25