Foo Fighters' world tour of fun kept on rolling last night (Aug. 16) at their concert in Greenwood Village, Colorado when in the middle of performing an acoustic version of "My Hero," Dave Grohl noticed a crying fan in the crowd and dedicated the performance to him mid-song. Watch footage of the moment, which contains plenty of profanity, below.

Grohl said:

Don’t cry motherf---er, I know you’re drunk, don’t cry. Are you crying right now? You’re f---ing crying aren’t you? [laughs] I love you man, look at you, holy s---. You know what? f--- that speech I was just going to make, I’m singing this s--- to you right now. I’m gonna sing this f---ing song right in your face, man to man, prison style, I’m going man to man. Me and you, I want some real tears, you better sing it with me. [laughs] Don’t make me cry, because I promised I wouldn’t do this.

He then invited the fan, who later identified himself as Anthony, to the stage and said, "I’m going to sing this to your crying grown-man a-- right now… get in here, motherf---er, you drunk emotional mess!"

Just last week, the band invited a fan on stage at a Canadian concert to sing lead vocals on a cover of Rush's "Tom Sawyer."

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