This is the easiest, and best way to play My December. It's easiest
because it uses 3 strings instead of just 2 like all the other tabs
I've seen, and thus having a better sound, because it holds all the
notes longer like a piano would.

Hold down the D-string at the 4th fret with you index finger the
entire time.
When you play the A-string at the 7th fret use your pinkie.
And use your middle finger to play the A-string at the 5th fret.(You
don't have to hold this finger the whole time.

Try it a couple times and you'll see why this is easier and sounds
better.

e|---------------------------------------------
B|---------------------------------------------
G|---0---0-----0---0-----0---0-----0---0-------
D|-----4---------4---------4---------4---------
A|-7---------7---------5---------5-------------
E|---------------------------------------------

Repeat through the whole song.