Second and third place didn't move either, with Disney's Lego Pirates of the Caribbean and Cars 2 holding their respective positions.
The one new entry into the UK top ten was Xenoblade Chronicles, which entered the fray in seventh place. If you live in the States and are looking to import the title, we've written up a piece about how to do that.
This week sees the beginning of the end-of-year launch onslaught, with the debut of Deus Ex: Human Revolution. There's gonna be "real talk" if Zumba beats that next week. Check out the UK Top Ten after the break.
Top 10 UK Software Sales (All Formats); week ending August 20:
- Zumba Fitness
- Lego Pirates of the Caribbean
- Cars 2
- The Legend of Zelda: Ocarina of Time 3D
- FIFA 11
- Lego Harry Potter: Years 1-4
- Xenoblade Chronicles
- Dirt 3
- LA Noire