Barbados-born beauty Rihanna remains the queen of the U.S. pop charts after scoring a fourth successive week at number one on the Billboard Hot 100 with her Umbrella hit. The summer anthem has kept the Shop Boyz' Party Like A Rock Star off the top for a fourth week. That remains at number two on the new chart.

Meanwhile, Fergie's Big Girls Don't Cry rises a place to three and T-Pain's Buy U a Drank (Shawty Snappin') drops to four.

Further down the chart, Enrique Iglesias' Do You Know? (The Ping Pong Song)/Dimelo jumps from 31 to 2, giving the Latin star his biggest hit in five years.

The highest debut on the new chart belongs to My Chemical Romance's Teenagers - at number 87, while surf rocker Jack Johnson's cover of John Lennon's Imagine enters the countdown at 93.

-Rihanna Pictures