KISSING PERRY IN SEVENTH HEAVEN AT THE TOP OF THE U.S. CHARTS.

There's no shifting KATY PERRY from the top of the U.S. pop charts - the singer's summer anthem I KISSED A GIRL has claimed a seventh week at number one. The song hasn't budged since it scored Perry the 1,000th number one on the Billboard charts in June (08). It's also a great week for R&B pin-up Rihanna; her Disturbia hit jumps up to three on the new countdown, while her Take A Bow remains in the top five - at four. The Jonas Brothers score the week's highest debut, crashing in at eight with Tonight. It's the third time in six weeks the pop siblings have claimed the highest entry on the chart.