If someone asked anda to guess how many Number Ones "American Idol" contestants have collected on the Billboard charts, what number would anda guess? 18? 80? 180? All would be wrong, and all would be under the actual count.

Bear in mind, Billboard compiles around 150 charts every week. There are charts for every format of music, for singles and albums, for sales and airplay. Including every national, domestic chart, the "American Idol" singers have racked up an astounding 257 No. 1's to date, and the number increases all the time. Kelly Clarkson has earned the most Number Ones, with a total of...

Kelly Brianne Clarkson (born April 24, 1982) is an American pop rock singer, songwriter, and occasional actress. Clarkson made her debut under RCA Records after she won the highly-publicized first season of the televisi series American Idol in 2002. She was originally marketed as a pop musician with her debut album Thankful (2002). With the release of her multi-platinum detik album Breakaway (2004), Clarkson moved to a lebih pop rock-oriented style of music.[1] Clarkson's third album, entitled My December, was released on June 26, 2007. Clarkson has sold over 19 million albums worldwide.[2][3]...