[source: NME.com]Green Day are set to release their own version of the Simpsons theme tune. The band make an appearance in The Simpsons Movie, which is out in July, and now three different companies in the US will release the group's rendition of the famous theme tune on Tuesday July 24. Warner Bros. Records will put out the single in the US, Fox Music will make a digital score album available through foxmusic.com and Extreme Music will release 25,000 doughnut cases to US retailers.