According to a Tweet from CEO of Salesforce, Marc Benioff, Green Day will perform at the business technology conference, Dreamforce, this coming November.

The conference is scheduled for November 18-21 in San Francisco. I would venture a guess that Green Day will perform on the night of Tuesday, November 19th, at the "Dreamforce Gala."

The Tweet from CEO Marc Benioff:

At last year's conference the Red Hot Chili Peppers performed, and Metallica and The Foo Fighters years prior to them, so it's normal for the conference to book high-profile rock bands.