Welcome


Welcome to the site where you can find information about the Hot Adult Contemporary format (also known as Adult Top 40). Here you can learn about the history of the format, links to current charts, chart feats, and more.

This site is still in its beginning stages. Have a look around and let us know what you think.

Please note: This site uses HAC Chart data from the former Radio & Records (1994-2006) and Mediabase (2006-present).  

Check out the Hot AC Blog to see the top 100 songs of the decade

Other than the listing of #1s, this site was last updated May 5, 2011, when the One Week Wonders page was updated.