because that's when they where experienced enough and wanted to start a band.
Green Day as they were formed in 1987 and Weezer were formed in 1992.
green day is a band, not a person, but the band started in 1987, before that, they were called sweet children
Green Day, the band, have been active since 1987, and are currently still active.
They were both formed in the same year, 1987.
Billie Joe Armstrong formed his first band in 1987 at the age of 15. This band later became Green Day.
Green Day is a band name, yes.
Green Day was Sweet Children before they were Green Day. That was the only band they were before Green Day.
No. Green Day is an American band. They are from Oakland, CA.
Green Day first formed in 1987 and have been a band for 23 years. They first formed with John Kiffmeyer (Al Sobrante) and brought their first album out, 39/smooth, in April 1990. John Kiffmeyer left to go to college later that year and in 1991 Tré Cool joined the band and has been with them ever since!
It was formed in 1987. John Kiffmeyer was replaced by Tré Cool in 1991.
The is only one ''green day'' band. i dont get the q.
Yes there will be a Green Day Rock Band. On the Spike VGA's Green Day anounced the game.