DESCRIPTION:
This is not the song used in the trailer. The trailer version is actually covered by Gary Clark Jr and Junkie XL, which hasn't been released yet. This song is called "Come Together' by artist GodSmack. Which is a cover of the original song by The Beatles. And it's the CLOSEST I could find for now.

Watch 'Justice League' Trailer Here:
https://www.youtube.com/watch?v=3cxixDgHUYw

Download 'Come Together' By GodSmack on Itunes Here:
https://itunes.apple.com/us/album/live-inspired/id521387688