This 13-year-old video of Daft Punk performing without costumes in Furthur, Wisconsin has been circulating the internet. Wikipedia makes the following statement about the video:
… a rare bootlegged video featuring the duo in Wisconsin matches the verified identity of Thomas Bangalter. Less clearly seen, Guy-Manuel de Homem-Christo is to Bangalter’s right and is mostly cut off from the camera. Comparing the artwork packaging of Homework to the video footage, one can verify that the album’s liner note photo was taken during this event.
So, why does Daft Punk wear costumes now?
Daft Punk have said that they donned their robot masks to easily merge the characteristics of humans and machines. However, Bangalter later stated that the costumes were initially the result of shyness. ‘But then it became exciting from the audiences’ point of view. It’s the idea of being an average guy with some kind of superpower.’ When asked on whether the duo expressed themselves differently within the robotic suits, Bangalter stated ‘No, we don’t need to. It’s not about having inhibitions. It’s more like an advanced version of glam, where it’s definitely not you.’
More about Daft Punk’s approach to managing fame is in the Wikipedia article.