I like Yellowcard and I like Mumford & Sons. However, when I saw them do this on Saturday it just sucked the soul right out of the song. Reminded me of when I saw them cover Nirvana's "Dumb" which also was lacking.
Just no..ewww. Throwing that in the middle of the set list just seems really awkward. They should replace the time they waste on this song with an old school song from OFTK!