U2 frontman has been an activist for years and as such has long been friends with former president Bill Clinton. Clinton, notorious for falling behind schedule, was running late for a Clinton Global Initiative event. Bono was on the panel and decided to slide into the Clinton's empty chair and have a little fun, taking his place for a few minutes. It turns out he does a pretty amazing Bill Clinton impression. Check it out below.

How did the 42nd President of the United States take it? On CNN's Piers Morgan he decided a little turnabout was fair play. See his impression of Bono below.

Who pulled off the impression better? Take our poll below.