Actually, he didn't form the band. I think it was Larry or maybe Adam (drummer and bassist, respectively) who founded the band, with his brother, who left long before they became famous. Bono and the others responded to a notice posted at their high school. Try Wikipedia for more details.
bono@u2.com
No, Bono has not left the band as of 2013
Bono is the lead singer of U2.
Everyone in U2 comes from Dublin, Ireland.
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chess
Bono
Bono from U2.
Bono
Bono is a great activist for world peace, and the band U2 backs many great humanitarian causes.
numb
U2.