This tab is 100 percent correct as far as my ears can hear.I wanted to tab this 
because they're isnt a tab for it. Hope this helps!
Feel free to rate, and messaged me for anything!

Here is a great tuner!
http://www.chordbook.com/guitartuner.php

Here is me Playing the Intro
http://www.youtube.com/watch?v=9NozCFf-Ch4


The 3rd string is tuned to a f,and the 2nd string is tuned to a C!
E|-----------------------|------------------------|
C|-----------------------|------------------------|
F|-8---8---8---8-8-10----|-7---7---6---7-7-8------|
D|--6-6-6-6-6-6-6--------|--6-6-6-6-6-6-6---------|
A|---8---8---8-----------|---8---8---8------------|
E|-----------------------|------------------------|
                           Quite A Reach!
E|-----------------------|------------------------|
C|----------------0------|------------------------|
F|-5---5---5---5-5-------|-8---8---8---8----------|
D|--6-6-6-6-6-6-6--------|--4-4-4-4-4-4-4-4-------|
A|---8---8---8-----------|---8---8---8---8--------|
E|-----------------------|------------------------|

This Tab matches the piano in the Official Video For Secret Valentine by We The Kings.

When he plays it live acoustic, he plays it half step down.
Hope this helped everyone!