Watch the Foo Fighters crash the Westboro Baptist Church's planned picketing of their concert in Kansas City and perform the song 'Keep it Clean'.

The Westboro Baptist Church has made a name for themselves by picketing high-profile events and the funerals of U.S. soldiers. They should've thought twice before announcing their plans to cause a scene at the Foo Fighters -- who they claim promote idolatry -- concert in Kansas City last night (9/16).

Knowing full well what the ultra-religious anti-gay group had planned, the Foo Fighters donned their 'Hot Buns' trucker personas and crashed the party. Watch as they pull up on a flatbed truck and rock the song 'Keep it Clean' and even win one of the picketers over.