List of Billboard Adult Contemporary number ones of 2009
Introduction Jason Mraz spent 16 weeks at number one with "I'm Yours".|alt=A man in a white t-shirt, jeans and a hat, playing a guitar and signing into a microphoneAdult Contemporary is a chart published by ''Billboard'' ranking the top-performing songs in the United States in the adult contemporary music (AC) market. In 2009, seven different songs topped the chart in 52 issues of the magazine, based on weekly airplay data from radio stations compiled by Nielsen Broadcast Data Systems.At the start of the year, the number one position was held by Faith Hill with her song "A Baby Changes Everything", retaining its position from the final chart of 2008.It held the top spot for a single week in 2009 before being replaced by David Cook's song "The Time of My Life". Cook's song, his "coronation single" after winning the previous year's season of ''American Idol'', had spent 11 weeks in the top spot in 2008 and thus finished with a total of 15 weeks at number one. Following Cook's run at number one, British band Coldplay topped the chart for a single week with "Viva La Vida", which won the Grammy Award for Song of the Year at the 51st Annual Grammy Awards held on February 8.From mid-February on, only four songs topped the chart, spending 46 weeks between them at number one. In the issue of ''Billboard'' dated February 14, Jason Mraz's song "I'm Yours" reached number one, beginning a run of 16 consecutive weeks in the top spot, the longest of the year. The song built airplay gradually across various radio formats, and finally topped the AC chart a full year after its initial release in February 2008.Despite holding the top spot for four months, "I'm Yours" remains Mraz's only song to reach number one on the Adult Contemporary chart. In June, teenage country music singer Taylor Swift replaced Mraz in the top spot with "Love Story", her first AC number one. The song was released in two different versions to country and pop radio, a pattern repeated later in the year with her single "You Belong with Me", which also topped the AC chart. Following Swift's six-week run at number one, another teenage vocalist took the top spot as Miley Cyrus' "The Climb" began a run of 15 consecutive weeks atop the chart. Taken from the soundtrack of ''Hannah Montana: The Movie'', in which she starred, "The Climb" was Cyrus' only song to reach number one on the Adult Contemporary chart until "Flowers" in 2023.Cyrus' run at number one ended in the issue of ''Billboard'' dated October 31, when Swift returned to the top spot with "You Belong with Me", making her the only artist to achieve two AC number ones in 2009.Swift's song held the number one position for the remainder of the year.
Chart history David Cook spent four weeks at number one with his song "The Time of My Life".Faith Hill claimed the first number one on the chart in 2009 with "A Baby Changes Everything".Taylor Swift topped the chart twice in 2009 with "Love Story" and "You Belong with Me".Miley Cyrus had a lengthy run at number one with "The Climb", from the soundtrack of her film ''Hannah Montana: The Movie''.+KeyIndicates best-performing AC song of 2009Issue dateTitleArtist(s) January 3 ""  January 10 ""  January 17 January 24 January 31 February 7 "Viva la Vida" Coldplay February 14 "I'm Yours"   February 21 February 28 March 7 March 14 March 21 March 28 April 4 April 11 April 18 April 25 May 2 May 9 May 16 May 23 May 30 June 6 "Love Story"  June 13 June 20 June 27 July 4 July 11 July 18 ""  July 25 August 1 August 8 August 15 August 22 August 29 September 5 September 12 September 19 September 26 October 3 October 10 October 17 October 24 October 31 "You Belong with Me"  November 7 November 14 November 21 November 28 December 5 December 12 December 19 December 26
See also *2009 in music
References