The Westboro Baptist Church tried to picket a Foo Fighters show in Kansas, so the band drove by them on a flatbed truck, performing their version of the Bee Gees' classic "You Should Be Dancing".
It's seriously catchy.
The Foo Fighters and Dave Chappelle were at Madison Square Garden, and came together to sing a cover of Radiohead's Creep.
10-year-old Nandi Bushell challenged Foo Fighters drummer Dave Grohl to a drum-off, so he decided to write her a theme song for round 2.
'Never Gonna Give You Up' legend Rick Astley sang a cover of a Foo Fighters song and it's actually pretty awesome.
TJ Riley, an emergency and trauma nurse, was surprised on Jimmy Kimmel Live! with a serenade by Dave Grohl of the Foo Fighters.