They mainly use the helmets to hide their identities. They want a private life despite their fame.
No.
Yes. They cameo as the two djs in the 'Zeus's Club' scene. They are not exactly wearing their normal helmets but rather grey helmets with lights embedded in them. They won't be hard to spot though because the helmets are shaped almost exactly like their regular ones.
You have to have baseball helmets, two cans for each, LED lights, and cardboard!
An american artist from the 70's named Mandre.Here's the link:http://trickledown.wordpress.com/2011/01/28/daft-punk-copied-their-helmets-from-1970s-motown-artist-mandre/
For $30 000 u.s each, you can have your own. I kid you not.
Daft means stupid or foolish, punk is a word used to describe a hoodlum, so literally Daft Punk means foolish hoodlum, or something along those lines.
It is because they cannot see out of them when they are turned on. they need to see their equipment to do a concert.
Not economically at all unfortunately. The company LED Effects does occasionally sell some for approximately $65,000.
They indubitably had custom in-ear monitors, such as these: http://www.ultimateears.com/_ultimateears/products/custom/index.php Failing that, there is actually a fair bit of room in them thar helmets for headphone cups such as Sony MDR 7605 or such like...
Daft Punk wears helmets for several reasons. Mainly, because they are shy of everyone crowding them as they stated quote "we like mixing but don't want the popularity from it''.
The song is harder, better, faster, stronger. by Draft Punk
Really, singers wear whatever they want to wear. Some singers outfits are functional though, like Daft Punk's helmets. Otherwise, it often depends on the genre of music.