Folk Music/The Dutchess & the Duke

I'm not a big fan of folk music, but "Reservoir Park" by The Dutchess and the Duke has been on repeat all day. I like other songs by the band (I recommend "Strangers," "I Am Just A Ghost," and "Mary" - the latter of which has a very, ah, interesting music video. Watch it here.), but there's just something about "Reservoir Park" that really clicks with me.

It's an interesting song; it's your typical lo-fi indie folk music with a male/female singing duo. The band reminds me of the Mamas and the Papas; both bands have a similar sound and this song in particular works perfectly when placed in a '60s context. Or something. I may be full of shit, but that's how I feel.

Well I went to see the gypsy to have my fortune told.
She said, "You ain't got no future, you ain't never growing old."
And the clouds keep rolling on in.

Questions: What are your favorite folk bands? Do you have any specific songs you'd recommend? Should I be worried about the tornado sirens going off RIGHT NOW AS WE SPEAK?!?!