The Disney owned site Oh My Disney revealed how they convinced Daft Punk to do the soundtrack for TRON Legacy.

I always thought it was director Joseph Kosinski who wanted them. But it turns out that it was Disney themselves, long before Kosinski was brought on board or even a single frame of film was shot.

Also, there was a collaboration between Daft Punk and Jay-Z on one song meant for TRON Legacy, but it wasn’t used in the film and wasn’t officially released. The song leaked online a couple of years ago, however.

Unused Daft Punk and Jay-Z collab track "Computerized"

Another really interesting revelation is that Daft Punk composed a lot more music for TRON Legacy — that, again, ended up not being used — and is yet to be released in any form. (However, these were considered “temp” tracks. Daft Punk may have felt they were not up to the standard of the others.)

There’s plenty more that can be gleaned from the Oh My Disney article, so I definitely recommend everyone checks it out!