A Green Day LEGO set? Not yet, but it's an idea from a user on LEGO Cuusoo, a site where users can submit their ideas for LEGO's next product.
User Gresh250 created this amazing looking mock-up of what a Green Day LEGO set would look like. The set includes LEGO-men versions of Billie Joe, Mike and Tré, each with their respected instruments. The attention to detail is phenomenal - everything from each of the guys' tattoos to the stickers on Blue.
If you'd like to see this project become a reality, you can hit the big green "Support" button on the project's page over on LEGO Cuusoo. If the project reaches 10,000 supporters, it will be reviewed by LEGO for a chance to become an actual product.
As a side, YouTube user raptor5120 has taken this concept and created a music video for the song "She" with the band as LEGO characters. It is amazing. Watch below.