4) Rihanna : Seems there is no stippoing for Riahnna as of now with her top of the chart one aftert the other the recent one being REHAB. Rihanna has achieved seven number-one singles on theBillboardHot 100 since first appearing on the chart on June 11, 2005, which is the most by any artist during that time span
2. Jay Sean. Jay Sean Is an old name in the music industry. His new single DOWN is staying for quite some good time on the charts.