List of number one hits in the mainstream top 40

This is a list of the number one hits in the Mainstream Top 40 year in and year out by the Mainstream Top 40 from the United States . The charts are updated weekly.

The Mainstream Top 40 Charts (also known as Pop Songs since June 2009 ) are "The hottest pop songs of the week, listed by the Mainstream Top 40 Airplay audience and compiled by Nielsen BDS ."

Mainstream Top 40

1990s

1992 , 1993 , 1994 , 1995 , 1996 , 1997 , 1998 , 1999

2000s

2000 , 2001 , 2002 , 2003 , 2004 , 2005 , 2006 , 2007 , 2008 , 2009

2010s

2010 , 2011

swell

1. ↑ Billboard Pop Song Charts