New song "Bang Bang" coming August 11th
Not sure whether this is true or not. But posted on Reddit. https://www.reddit.com/r/greenday/comments/4vj8ej/933_wmmr_just_said_theyre_going_to_be_playing/
Update by Andres: It's real. GDA confirmed it, then Billie Joe announced it on Instagram.
Update by Khaleesi.: ALBUM ART COVER REVEALED
Yes, and it's also a hint about them opening for Guns n roses during the next tour. I also dreamed this last night, so it's official