Last March, Jeff Tweedy, Wilco's lead singer, played two benefit shows in Chicago. He took pre-submitted audience requests; one woman asked for either Wilco's "Ashes of American Flags"or Beyoncé's "Single Ladies (Put a Ring on It)".
Guess which one he chose? Oh, wait, we told you in the headline. Watch the video after the jump.
Watch out for Tweedy dancing Beyonce's parts...awesome.