Question: what was number one on 21st march 1999
Answer: Baby One More Time '' Britney Spears February 6 February 13 `` Angel of Mine '' Monica February 20 February 27 March 6 March 13 `` Believe '' Cher March 20 March 27 April 3 April 10 `` No Scrubs '' TLC April 17 April 24 May 1 May 8 `` Livin ' la Vida Loca '' Ricky Martin May 15 May 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