Step 1 : Introduction to the question "2. An American band now - formed in 1987 they are probably best known for 'Boulevard of Broken Dreams' and 'American Idiot' from 2004. Which colourful band might this be?"
...1. Green Day 2. Rainbow Flyer 3. Green Mile 4. Redwing To date (2010) Green Day have sold over 65 million albums world wide.