High Quality Content by WIKIPEDIA articles! The Billboard Hot Dance Club Songs chart is a chart that ranks the best-performing singles in that category in the United States. The first number one song of the year was claimed by English-American pop girl group The Pussycat Dolls with the song "I Hate This Part". It remained at number one for an additional consecutive week, spending two weeks atop the chart in total. Artists to achieve one number one song on the chart throughout the course of 2009 were The Killers with "Human",Donna Summer with "Fame (The Game)",LeAnn Rimes with "What I Cannot Change",Shontelle with "T-Shirt", and Lily Allen with "The Fear". Two artists achieved two number ones on the chart. American singer-songwriter Mariah Carey topped the chart twice with "I Stay in Love" from her eleventh studio album E=MC? (2008), and with "Obsessed" from her twelfth studio album Memoirs of an Imperfect Angel (2009). Данное издание представляет собой компиляцию сведений, находящихся...