[Gunn]

Best:

Such Great Heights - Iron and Wine (Postal service cover)
Inside and Out - Feist (Beegees cover)
Darling Nikki - Foo Fighters (Prince cover)
Modern Romance - TV On The Radio (Yeah yeah yeah's cover)


worst:

too many.

let's start with Korn's version of "Lowrider" by War

make your own list from here.