How many members of U2 does it take to change a lightbulb?

One. Bono holds the lightbulb, and the world revolves around him!!!.How many members of U2 does it take to change a lightbulb?I wouldn't want to answer this on the grounds that I may get blown up!How many members of U2 does it take to change a lightbulb?this manyHow many members of U2 does it take to change a lightbulb?None. They have vertigo.