Best covers of adventure time songs?

[ttj]

i'm looking for good covers of adventure time songs, so far i've only seen one or two, and a few remixes.. A lot of AT covers just don't sound good enough.

here are some nice ones i want to share:

What am I to you (Project 52): http://www.youtube.com/watch?v=nuynTyxLnlQ
I'm just your problem (Elena Iviel): http://www.youtube.com/watch?v=-PKSLLiS3JQ

orchestral covers by Blake Robinson (composer of stanley parable music):

I'm on a boat: http://www.youtube.com/watch?v=t2BSuRAjrDo
All gummed up inside: http://www.youtube.com/watch?v=5WhtTZxJ47g
Sleepy Puppies: http://www.youtube.com/watch?v=QgIdzb19lG4
Tropical Island: http://www.youtube.com/watch?v=xlcd40wxqVQ
Daddy's Little Monster: http://www.youtube.com/watch?v=JlAgDAmdi8g
Oh, Bubblegum: http://www.youtube.com/watch?v=7eqHKiFY7z4
What am i to you: http://www.youtube.com/watch?v=ke0PjQq52Mk

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please share any you find, i'm also looking for more