U2 played The United Center last night, and Bono will never forget his Chicago tumble.

MJ Kim, Getty Images

The U2 stage at the United Center was huge and apparently tough to walk on. Walking down some stairs, Bono took a pretty nasty tumble.

To Bono's credit, he kept on singing and really didn't miss a beat. While this would probably end the night for most, thumbs up to Bono...The show must go on.