Rihanna has earned her 10th no.1 single on the Billboard Hot 100 chart with her S&M remix featuring Britney Spears. This ties Rihanna with Janet Jackson and makes her the artist who had 10 no. 1 hits in the shortest period of time. Rihanna is also the youngest to reach this milestone, beating out Mariah Carey who was 25 years old when she hit this mark. Kudos to Rihanna for maintaining a steak of hits and rocking trendy fashions.
