Amazon is currently offering up the mp3 version of the Green Day song “Wake Me Up When September Ends (Live)” from their new live album Awesome As F**k for FREE.

Yes, FREE. Just follow the link and download the song and then it’s yours, you own it. But grab it now, as it’s the Free Song of the Day offer, which means it’s only available for free today, Tuesday, April 26, 2011, til midnight tonight PST.

Awesome As F**k, which was released on March 22, 2011, is available as a CD/DVD, CD/Blu-ray, and MP3 Download. The CD contains 17 tracks; the accompanying DVD/Blu-ray has 16 songs.

The album was recording during Green Day’s 2009–2010 “21st Century Breakdown World Tour” and includes a DVD or Blu-ray of one of the concerts from the tour recorded in Japan.