Anexo discusión:Sencillos número uno de Hot 100 de 2008 (EE. UU.)
Enlaces rotos
[editar]- http://www.osdia.es/foro/showthread.php\?t=41871
- http://web.archive.org/web/http://www.billboard.com/bbcom/chart-beat-bonus/chart-beat-madonna-pussycat-dolls-beyonce-1003925399.story
- http://www.billboard.com/bbcom/yearend/2008/charts/hot-100.shtml
- http://www.billboard.com/bbcom/esearch/article_display.jsp\?vnu_content_id=1003701471
- http://www.billboard.com/bbcom/esearch/article_display.jsp\?vnu_content_id=1003785049
- http://www.billboard.com/bbcom/esearch/article_display.jsp\?vnu_content_id=1003812812
- http://www.billboard.com/bbcom/esearch/article_display.jsp\?vnu_content_id=1003845854