Lady GaGa is at number one in the charts with her song Bad Romance.
The American singer climbed two places to reach the top spot after appearing on the X Factor show last week.
Her album The Fame is also the UK's biggest selling album of the year so far.
But it's likely that Susan Boyle's debut album called I Dreamed a Dream will be the most popular of the year after topping the album charts for three weeks in a row.
The official BBC Children in Need Medley by Peter Kay's Animated All Stars dropped to number two pushing Rihanna to number three.