How Well Do You Know Green Day? ;D

Let's see how much you know the band, Green Day. Do you know them as well as me?

1 In what year did Green Day officially become a band?
2 What is the lead singers' name?
3 What was Green Day's first video?
4 How many children does Billie Joe have?
5 What color tie was Billie Joe wearing at the August 15th 2009 show in Denver, Co?
6 What do the guitar picks look like at the 21st Century Breakdown Tour's shows?
7 Where was Tre Cool born and when?