Just how much is Britney Spears worth?

While we don't know down to the final penny, we can tell you that Forbes magazine has released their list of 2010's top earning musicians and she's right up there.

Britney is ranked at number five, with an estimated earning for the past year at £41.8m.

However, her estate is still under conservatorship, so her father, Jamie, controls most of her finances.

In the top spot is U2, believed to have earned around £84.9m, with Madonna and Lady Gaga also making the top 10.

Here's the full list of the top 10 earning musicians as calculated by Forbes:

1. U2, £84.9m
2. AC/DC, £74.5m
3. Beyonce, £56.8m
4. Bruce Springsteen, £45.7
5. Britney Spears, £41.8m
6. Jay-Z, £41.1m
7. Lady Gaga, £40.5m
8. Madonna, £37.9m
9. Kenny Chesney, £32.6m
10. Black Eyed Peas/Coldplay, £31.3m