<Table> Key <Tr> <Td> </Td> <Td> Indicates best - performing single of 1999 </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> Indicates best - performing single of 1999 </Td> </Tr> <Table> <Tr> <Th> Issue Date </Th> <Th> Song </Th> <Th> Artist (s) </Th> <Th> Reference </Th> </Tr> <Tr> <Td> January 2 </Td> <Td> "I'm Your Angel" </Td> <Td> R. Kelly and Céline Dion </Td> <Td> </Td> </Tr> <Tr> <Td> January 9 </Td> <Td> </Td> </Tr> <Tr> <Td> January 16 </Td> <Td> "Have You Ever?" </Td> <Td> Brandy </Td> <Td> </Td> </Tr> <Tr> <Td> January 23 </Td> <Td> </Td> </Tr> <Tr> <Td> January 30 </Td> <Td> "...Baby One More Time" </Td> <Td> Britney Spears </Td> <Td> </Td> </Tr> <Tr> <Td> February 6 </Td> <Td> </Td> </Tr> <Tr> <Td> February 13 </Td> <Td> "Angel of Mine" </Td> <Td> Monica </Td> <Td> </Td> </Tr> <Tr> <Td> February 20 </Td> <Td> </Td> </Tr> <Tr> <Td> February 27 </Td> <Td> </Td> </Tr> <Tr> <Td> March 6 </Td> <Td> </Td> </Tr> <Tr> <Td> March 13 </Td> <Td> "Believe" </Td> <Td> Cher </Td> <Td> </Td> </Tr> <Tr> <Td> March 20 </Td> <Td> </Td> </Tr> <Tr> <Td> March 27 </Td> <Td> </Td> </Tr> <Tr> <Td> April 3 </Td> <Td> </Td> </Tr> <Tr> <Td> April 10 </Td> <Td> "No Scrubs" </Td> <Td> TLC </Td> <Td> </Td> </Tr> <Tr> <Td> April 17 </Td> <Td> </Td> </Tr> <Tr> <Td> April 24 </Td> <Td> </Td> </Tr> <Tr> <Td> May 1 </Td> <Td> </Td> </Tr> <Tr> <Td> May 8 </Td> <Td> "Livin' la Vida Loca" </Td> <Td> Ricky Martin </Td> <Td> </Td> </Tr> <Tr> <Td> May 15 </Td> <Td> </Td> </Tr> <Tr> <Td> May 22 </Td> <Td> </Td> </Tr> <Tr> <Td> May 29 </Td> <Td> </Td> </Tr> <Tr> <Td> June 5 </Td> <Td> </Td> </Tr> <Tr> <Td> June 12 </Td> <Td> "If You Had My Love" </Td> <Td> Jennifer Lopez </Td> <Td> </Td> </Tr> <Tr> <Td> June 19 </Td> <Td> </Td> </Tr> <Tr> <Td> June 26 </Td> <Td> </Td> </Tr> <Tr> <Td> July 3 </Td> <Td> </Td> </Tr> <Tr> <Td> July 10 </Td> <Td> </Td> </Tr> <Tr> <Td> July 17 </Td> <Td> "Bills, Bills, Bills" </Td> <Td> Destiny's Child </Td> <Td> </Td> </Tr> <Tr> <Td> July 24 </Td> <Td> "Wild Wild West" </Td> <Td> Will Smith featuring Dru Hill and Kool Moe Dee </Td> <Td> </Td> </Tr> <Tr> <Td> July 31 </Td> <Td> "Genie in a Bottle" </Td> <Td> Christina Aguilera </Td> <Td> </Td> </Tr> <Tr> <Td> August 7 </Td> <Td> </Td> </Tr> <Tr> <Td> August 14 </Td> <Td> </Td> </Tr> <Tr> <Td> August 21 </Td> <Td> </Td> </Tr> <Tr> <Td> August 28 </Td> <Td> </Td> </Tr> <Tr> <Td> September 4 </Td> <Td> "Bailamos" </Td> <Td> Enrique Iglesias </Td> <Td> </Td> </Tr> <Tr> <Td> September 11 </Td> <Td> </Td> </Tr> <Tr> <Td> September 18 </Td> <Td> "Unpretty" </Td> <Td> TLC </Td> <Td> </Td> </Tr> <Tr> <Td> September 25 </Td> <Td> </Td> </Tr> <Tr> <Td> October 2 </Td> <Td> </Td> </Tr> <Tr> <Td> October 9 </Td> <Td> "Heartbreaker" </Td> <Td> Mariah Carey featuring Jay - Z </Td> <Td> </Td> </Tr> <Tr> <Td> October 16 </Td> <Td> </Td> </Tr> <Tr> <Td> October 23 </Td> <Td> "Smooth" </Td> <Td> Santana featuring Rob Thomas </Td> <Td> </Td> </Tr> <Tr> <Td> October 30 </Td> <Td> </Td> </Tr> <Tr> <Td> November 6 </Td> <Td> </Td> </Tr> <Tr> <Td> November 13 </Td> <Td> </Td> </Tr> <Tr> <Td> November 20 </Td> <Td> </Td> </Tr> <Tr> <Td> November 27 </Td> <Td> </Td> </Tr> <Tr> <Td> December 4 </Td> <Td> </Td> </Tr> <Tr> <Td> December 11 </Td> <Td> </Td> </Tr> <Tr> <Td> December 18 </Td> <Td> </Td> </Tr> <Tr> <Td> December 25 </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> Issue Date </Th> <Th> Song </Th> <Th> Artist (s) </Th> <Th> Reference </Th> </Tr>

What song was number 1 on december 12 1999