2 of 27Rihanna has just given Katy Perry the kiss-off.
And before your mind goes wandering - we mean that Rihanna's new track, Disturbia, has ended Katy's seven-week chart-topping run with I Kissed A Girl.
Interestingly Rihanna held the top spot for seven weeks herself last summer in the US charts with the addictive Umbrella.
Find all the latest about your favourite star
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