page_title: List of Billboard Hot 100 number ones of 2006
section_title: Chart history
hierarchical_section_title: List of Billboard Hot 100 number ones of 2006 / Chart history
caption_attribution_description: Fergie at the MMVAs.
context_page_description: The Billboard Hot 100 is a chart that ranks the best-performing singles of the United States. Published by Billboard magazine, the data are compiled by Nielsen SoundScan based collectively on each single's weekly physical and digital sales, and airplay. In 2006, 18 singles reached the top of the chart, the most number-ones in a chart year since 1991. A 19th single, Mariah Carey's "Don't Forget About Us", started its run at number one in 2005.
  In 2006, 20 acts achieved their first U.S. number-one single, either as a lead artist or featured guest, including D4L, Paul Wall, Ali & Gipp, Slim Thug, James Blunt, Ne-Yo, Daniel Powter, Rihanna, Chamillionaire, Shakira, Wyclef Jean, Taylor Hicks, Nelly Furtado, Timbaland, Fergie, T.I., and Akon. Krayzie Bone and Justin Timberlake, despite having hit number one with Bone Thugs-n-Harmony and NSYNC respectively, earns their first number one songs as solo acts. Justin Timberlake and Beyoncé each had two number-one singles in this year. During the year, eight collaboration singles topped the chart, breaking the record set in 2003 and 2004, both of which had seven.
caption: Singer Fergie earned her first number one single "London Bridge" in U.S.
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