Rihanna Breaks U.s. Pop Chart Record

Rihanna has broken pal Katy Perry's record for the most number ones on America's Pop Songs radio airplay chart.

She becomes the first artist in the 20-year history of the countdown to land 10 chart-toppers, thanks to the success of her latest release, Stay, which rose a spot to the top on Monday (22Apr13).

Rihanna has managed the feat in less than seven years - her first number one on the chart was 2006's Sos.

Her other Pop Songs number ones include Take a Bow, Disturbia, S&M and We Found Love.